A collector selling 500-plus cards at once wants one thing: a single payout without listing everything themselves. A reseller buying it needs enough margin left after platform fees (commonly 10 to 15%) to make the deal worth the time. 70% used to split that difference cleanly. It still can, but the number that actually gets a deal done now depends heavily on collection size.
Why the size of the deal matters more than it used to
A $350 collection has a lot of competition: plenty of resellers can send $350 over Zelle on the spot. A $3,500 or $15,000 collection has far fewer buyers who can move that much cash instantly, which means less competitive pressure and more room to hold a real number like 70 to 76%. Sellers with more available capital have a structural advantage buying larger collections, not because they negotiate better, but because fewer people can even compete for the deal.
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Typical offer, cards under $100
Standard range for smaller individual cards in a collection.
%70
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Typical offer, higher-end cards
Cards over roughly $100, when the lot has real standout pieces.
%up to 80
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Platform fees to account for
What buying at market minus this leaves nearly no margin.
%10–15
The risk of chasing thin margins
Buying at 80 to 85% of market and selling at market minus fees leaves almost nothing, and in a market pullback, that inventory can be worth less than what was paid for it before it even sells. Sellers who do push margins that thin only make it work by turning inventory fast: listing within hours, not days, with the systems (scanner, inventory software, a repricing rule already set) to make that speed possible. Thin margins without fast turnaround is the combination that actually loses money.
Why a plentiful market is good for the person selling, not the reseller
More resellers competing to buy collections is genuinely good news for someone selling their own collection, more buyers means a better realistic offer. It's tougher for the reseller: sourcing gets more competitive, margins compress, and the sellers most likely to hold out for a firm 80%+ on a large lot often end up settling for less anyway once it doesn't move at that price. Both sides of that negotiation benefit from understanding it: a seller with real leverage is one with a collection large enough that few buyers can write the check, and a buyer with real leverage is one who can list and sell fast enough to make thinner margins work.
How much capital this actually requires → Protecting the payment on a big buy →