The Mark Sanchez SP Authentic Logo that was sold recently is back on eBay, and I am not sure why someone decided this was a good idea. Why buy the card for $2600+
if you are just going to turn it around and sell the next day? In fact, the same thing has happened a number of times for a lot of the big pulls like this, and many of them did not sell for low prices.
Really, its not like these cards are 200 dollar cards that you can turn around and sell for 500 bucks. These are cards with ENORMOUS price tags on them that really have ZERO upside for gaining value.
I guess some people just like the thrill of being hobby day traders with tons of money. You would think that if they have just spent the price of a small car, it would be for something they very much want to keep. Not in this case, though.