I have a Sega Game Gear + three games for sale over on eBay. The downside? The Game Gear is broken. :C With AC power or batteries, when you flip the power switch on the screen just blips for a split second and then it goes blank. I have a feeling it's something as simple as a bad connection on a wire. Anyway, it's cheap and will probably stay cheap and could be a fun afternoon project if you're in to such things. The reward for getting it to work would be two Sonic games and a Lion King game (all three were my FAVES as a kid!).
Anyway, that auction is here: http://www.ebay.com/itm/Sega-Game-G...../111130354615?

And don't forget! Rat King Kigurumi: http://www.ebay.com/itm/Rat-King-Ki.....-/111125356005