I still have mine! I still love it too.
I also have plenty of games for it too, never sold one.
Sonic The Hedgehog
Sonic The Hedgehog 2
Sonic The Hedgehog Chaos
Hook
Madden 95
NBA jam live (I forget which year)
I only have one adapter now though for my Genesis and my gamegear since my original adapter for the gamegear broke.
I still like all of these games (sonic specifically) I wish that they would come out for the Wii since Nintendo has full rights to all of them to release on Virtual Console, I just wish that 6 AA batteries would last longer than 2 hours because then I would actually play game gear on road trips and stuff. I stick to the DS though because it's small, the gameplay is great, and it's battery lasts for over 10 hours even on something as heavy as mario Kart DS. I have sonic Rush for DS but it's just not the same as the Game Gear sonics, I still like the game though.