What explains this?

[joshleon]

Last night a well known ebay consignor and seller of set breaks had a 72 topps set ending. The Bench card was self described as "NR MT OR BETTER" by the seller (and to this seller's credit, he is usually conservative in self-grades). The card sold for 490.

Now, you can find slabbed PSA 8s of this card for over 100$ less. What explains this phenomenon? I personally believe, just as people buy clearly fake cards on the off chance 1/100 is legit, they are buying these in hopes that it grades a 10? I don't know how you see a "10" from an ebay scan.

That's all I can think of but would love to hear thoughts.