I inherited my friend's Lynx after he became bored with it after about half a year, and got himself a Gameboy. He only had one game for it though, so I got some more of my own. That first game was Scrapyard Dog, and I really loved it. I was envious of my friend up the coast who had a GameGear though, and sometimes we'd swap our handhelds for a few days to have a go of the games on the other system. I wanted games like Wonderboy in Monsterland, one of my favourite Amiga and arcade games, on a portable system, and the GameGear was the only one here that had it (we didn't get NEC consoles in Australia).
I still like the Lynx the most though, and I'd love to develop a new game for it some day. Thankfully the Lynx development system is an Amiga so I'll be right at home.