Episode 30 1 Year of Selling Sports Cards: Selling (Part 2)

Released: November 18, 2025 | Duration: 31:37

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About This Episode

Ninety-eight thousand dollars in eBay sales over a first year. The number sounds like a good result, but the honest accounting of how it happened is more useful than the headline. The first dozen sales came from asking friends to buy worthless cards and leave feedback. Shipping decisions came from trial and error that included envelopes that arrived looking like they had been run over by a truck. The negotiation framework took months to learn, and a lot of early deals were closed for less than they should have been because the discipline to hold a number was not there yet.

This is part two of the Year One series. It covers the sell side in the same operational detail that part one used for buying: how to launch an eBay store with no algorithm traction, when to use a plain white envelope versus a bubble mailer, how to model fees before pricing anything, the negotiation template that protects margin, why budgets are not about restriction but about timing, the wax and single-card plays that almost never work, and which marketplaces serve which kinds of cards best.

The through-line is the same as on the buy side: the sell is harder than the buy, and most of the mistakes that show up in a selling ledger trace back to decisions made at the moment of purchase.

Topics Covered

  • Launching an eBay store with no history: how to seed early feedback through friends to trigger the algorithm
  • Shipping by value: plain white envelope (PWE) for cards under twenty dollars, bubble mailer with corner guards for cards over twenty dollars
  • Non-machinable stamps: when to use them, what they cost, and the trade-off between protection and tracking
  • Fee math in practice: thirteen percent eBay base fee plus promoted listings, how to model thirty percent total selling cost before pricing
  • How to determine your happy number and refuse to deviate from it under negotiation pressure
  • The 2017 Select Mbappe Copper /49 negotiation story: anchoring, round number psychology, holding at 4,800 through multiple counter-offers
  • Budget discipline as a selling tool: how liquidity constraints force bad timing and bad pricing
  • Why wax is almost always a bad investment: supply and demand mechanics, the demand forecasting problem, and the time value issue
  • Singles and prospecting: the portfolio approach, why 98 percent of players go down, and the narrow conditions under which prospecting makes sense
  • Multi-channel selling: why matching the card to the right marketplace is one of the highest-leverage skills in the hobby
  • Keeping a buying journal: logging investment thesis and buyer profile at purchase to improve selling decisions months later

Full Transcript Summary

Launching on eBay: How the Algorithm Finds You

Starting an eBay store is intuitive. The platform guides you through the setup fields, the listing process is well structured, and within a few hours you can have inventory live. What the platform does not do is explain why nothing sells for the first two weeks.

The eBay algorithm does not know who you are. Your store is one of hundreds of thousands with no transaction history, no reviews, and no signal that buyers should trust you. The way to accelerate past that cold start is to manufacture the first few transactions deliberately. The host asked friends to purchase cards – cheap, near-worthless cards – pay full price, and leave detailed reviews about shipping quality and description accuracy. The cost was the shipping on those cards plus whatever the card was worth. The return was enough feedback to give the algorithm a reason to start showing the store's listings.

This is not a hack. It is seeding trust in a marketplace that runs entirely on trust signals. Once those first dozen reviews are in, organic sales begin to accumulate, and from there the flywheel builds on itself.

Shipping by Value: The Two Systems That Work

Shipping decisions directly affect margin, and most new sellers make them based on habit rather than math. The framework that emerged from a year of volume is simple: under twenty dollars, use a plain white envelope (PWE). Over twenty dollars, use a bubble mailer with corner guards.

A PWE is cheap, fast, and works well for low-value cards where the cost of a bubble mailer would eat the margin. The card goes into a top loader, sealed with painter's tape, into the envelope. The risk is the sorting machine. USPS runs envelopes through automated processing that can crease or bend them. Most cards survive undamaged. Out of roughly two hundred and fifty PWE shipments, one buyer complained about condition.

If you want to avoid sorting machine damage without switching to a bubble mailer, non-machinable stamps provide a middle path. The post office will hand-route envelopes marked non-machinable instead of running them through the sorter. The trade-off is cost and tracking – non-machinable stamps are slightly more expensive, and you lose the automated tracking that comes with eBay label printing.

For cards over twenty dollars, bubble mailers with guards are the standard. Six-by-four mailers purchased in bulk from Amazon, corner guards taped around the card, and eBay shipping labels for tracking. The protection is worth the additional cost at any price point where the card has meaningful value.

Fee Math: Model It Before You Price Anything

The most common mistake in early selling is listing cards without first running the fee math. eBay takes thirteen percent on each transaction. If you run promoted listings – which move your inventory up in search rankings – add another three to four percent on sales that convert through the promotion. Add shipping materials and postage. By the time you have cleared a typical transaction, you are looking at twenty-five to thirty percent of your sale price going out before any cost-of-goods calculation.

This means the card you bought for fifty dollars needs to sell for at least sixty-five to stay flat. It needs to sell for around seventy to realize a ten percent return on the card itself. Most people do this math after the fact. Do it before listing, because the price you list at needs to bake in the full cost structure, not just the buying price.

The related discipline is determining your happy number before anyone makes an offer. A happy number is the price at which you would feel good about the transaction regardless of what might have been. It is backed by comp data, by the investment thesis, and by an honest read on where the market is. Once you have that number, negotiate toward it rather than around it.

The Mbappe Copper /49: A Negotiation in Real Time

A concrete example from the year: a 2017 Select Mbappe Copper parallel numbered out of forty-nine. One of his best rookies. Listed on eBay at fifty-five hundred – the Card Ladder value at the time.

Within a short window, multiple buyers reached out. One opened at forty-two hundred. The response was: I was looking to get five thousand on it. Round numbers have psychological sticking power. Buyers will often move toward them because they feel cleaner. The buyer responded with forty-four hundred. The counter was forty-eight hundred. He tried forty-six hundred. The answer was forty-eight hundred, stated flatly. He came back eight hours later and said yes.

Several things made this work. The card was listed high enough that a private deal at a negotiated price could net more than an eBay sale because it avoided the platform fees entirely. The seller knew the happy number before the conversation started. The number was defensible based on comp data and could be articulated calmly under pressure. And the seller was genuinely willing to hold the card if no deal materialized – which removes the urgency that causes people to fold on price.

Budget Discipline: The Thing That Protects Your Selling Timeline

The most underrated discipline in the hobby is having a card budget and staying inside it. Not because budgets are about frugality, but because overextending on the buy side removes your ability to wait on the sell side.

The scenario plays out constantly. You buy with a six-month thesis – a baseball player you want to hold through the season, a soccer card you want to sell into World Cup momentum. Three months in, an unexpected expense hits. You are slightly over-extended because the last few buys were good ideas that pushed you past the comfortable limit. Now you need to liquidate, and you liquidate at the worst possible time into the worst possible conditions. Whatever margin existed on paper disappears in fees and timing.

Budget discipline is what prevents forced sales. The person who does not need to sell at a given moment is the person who gets the price they want. Buyers can smell urgency. When you put cards up for auction under financial pressure and accept whatever comes in, you are funding someone else's good buying decision.

Wax, Singles, and the Plays That Rarely Work

Wax has one viable long-term thesis: buy high-demand product, seal it, hold it for five to ten years as supply permanently declines. If that is your plan, it is a legitimate one. If you are expecting to buy a box, bust it, and come out ahead – the pack odds say you are probably going to be disappointed. The marketing around busting wax exists to sell more product. It is not an investment framework.

Singles speculation works in a narrow set of conditions. The player needs to outperform expectations, in a position that generates card demand, in a moment when their market has not yet caught up to their trajectory. Those three conditions need to align, and even when they do, most of the value creation happens for the people who identified the player before the market did – not the people who bought in when it was obvious.

If you are going to prospect, do it like a portfolio manager. Buy a range of players, document the thesis for each, and track whether your reasoning was right or wrong. When it is wrong, figure out specifically where the analysis broke down. The pattern of where you are systematically wrong is worth more than the occasional big hit.

Finding the Right Buyer, Channel, and Timing

The final element of the selling framework is matching card to market. Not every card performs best in the same place. High-ticket graded cards that benefit from conversation often sell better through private deals than eBay because you can negotiate around the fee structure. Low-dollar volume cards belong in COMC or bulk listings. Cards with strong Instagram collector communities sell faster there than on any auction platform.

The instinct to list everything on eBay because that is where you started is a reflex, not a strategy. As you build more channels – card shows, Instagram, other platforms – the question to ask for each card is: where does the buyer for this specific card already live? Find them there rather than hoping they find you in a sea of listings.

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