I still have my big GameGear starter kit in the closet. System, carrying case, magnification screen, rechargeable battery pack, etc. That along with the TV tuner and a couple dozen games made for an absolutely great mobile experience back in the day. I never owned a Gameboy because they always looked like junk in comparison. Small screens, monotone picture, clunky ergonomics. They only real redeeming quality the Gameboy had was an apparently longer battery life.
As much as I enjoyed my GameGear, I really wanted a Nomad. ;)