Prices can vary
Getting back to the original post. The actual sold price on a particular card in a particular PSA or SGC grade can vary by 20% or more, even if sold within a couple of months. Just look at VCP data. The images show the exact Cert number on the slab. There seems to be variability perhaps based on having 2-3 bidders competing at the end of an auction. Smart bidders can exploit that variability. I'm not sure there is any pattern to the day, or which auction house is involved. Sometimes, there could be a shill bidder involved. A smart investor might try to buy low and flip a card for a profit a few months later. I've seen a few HA cards from this summer being sold on Ebay. I've seen examples where this strategy has worked. Most buyers do not participate with all the auction houses. We've also seen examples where the strategy has failed miserably, where the resell price was very low on Ebay. I've had good luck buying on Ebay in the month of December.
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