Here is one outdated and totally worthless game for you:
http://www.ebay.com/itm/10-Yard-Figh...#ht_952wt_1396
or for something a little bit more popular:
http://www.ebay.com/itm/Metal-Gear-S...#ht_500wt_1413
/thread
As for myself, I do not collect to re-sell in the future, there are better ways to invest your money and have it grow faster. I collect for myself, and almost never leave anything sealed.