If PSA brings better money then why isn't there arbitrage in buying SGC 60s and then crossing them into PSA 5s? If the answer is because SGC 60s become PSA 4s, then isn't the real question whether PSA 4s bring better money that SGC 60s?
I think you could play this game selectively in some cases, but I doubt it's a business model to count on SGC -> PSA crossovers (and vice versa) as a reliable cash cow.
I would guess there are people on this board who play this game regularly. I've noticed some who routinely complain about SGC values seem to sell high grade SGC cards -- maybe PSA wouldn't cross them?
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