Well then!
Anyway, aside from SFA, there's SMS (duh), Smash Bros. (but I know you don't want that, Luigison), Spider-Man, which is really fun to play, yet I detest the kicking and punching... but the swinging around and stuff is so cool!
Oh yes, I'd say that Luigi's Mansion is worth buying. It's really quite good, you know. And it's even kind of creepy, which seems strange for being so cartoony.
"Thus has it ever been! Thus shall it ever be!"