Some of my Ebay pickups:
Super C (NES) - $10.50 including shipping
Donkey Kong 3 (NES) - $10 including shipping
Ecco the Dolphin (complete in box) - $5 including shipping
Super Monaco GP original release (complete in box) - $4 including shipping
My interest has been piqued lately over Genesis cover variations. Apparently, some early 1990's games were re-released in their original packaging, but with the current ESRB ratings on the covers. ESRB started in 1995. Sonic 1, Super Monaco GP, Super Hang-On, and After Burner II are the known ones. While Sonic & SMGP had "Sega Classics" versions re-released later in the Genesis' life, there were also ESRB rated original covers released. They're not too expensive, but I still see them very rarely. I'd like to get each variation of the four of those games.
Here's an example of SMGP (which was originally released in 1990)with ESRB:
http://www.ebay.com/itm/330878445265?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649I missed the last one that went for $7. I may pull the trigger on this one.