I love the Nintendo DS, is a very awesome handheld for trips and an easier multiplayer style, but well you already stated that you dont travel much but you could always use it if you are waiting for the dentist to pass you in or in long lines.
I highly recommend you to get Mario Kart DS, Brain Age, Tetris DS, Sonic Rush Adventure and if it is your taste, a Pokemon game. Also some GBA games if you got access to some. You might find in this season a lot of good titles in clearance price as they are disappearing, games like Fire Emblem are a must.
My only complaint is it doesnt have a reverse compatibility with the previous Game Boy titles, it blocks you to a massive legacy of titles, if you want to try those, get a GBASP.
I highly recommend you to get Mario Kart DS, Brain Age, Tetris DS, Sonic Rush Adventure and if it is your taste, a Pokemon game. Also some GBA games if you got access to some. You might find in this season a lot of good titles in clearance price as they are disappearing, games like Fire Emblem are a must.
My only complaint is it doesnt have a reverse compatibility with the previous Game Boy titles, it blocks you to a massive legacy of titles, if you want to try those, get a GBASP.