I almost bought a nomad once or twice, but ended up with a Game Gear instead. I still had Shining Force (Sword Of Hajya -- not as good as the Genesis ones, but still!) and a couple of other worthwhile games on it. I still miss the fact that I never had a Nomad though. The idea of having Phantasy Star IV and the Shining Forces was very, very tempting....
Granted, I still would have been sad because Lunar I/II and Popful Mail were all on my Sega CD. I need to play through some of them again soon.