I definately love my Wii and would never even consider getting rid of it. However, I too am slightly disappointed with the types of games so far. I'm mostly an RPG-maniac, but there's so few RPGs on the system so far it leaves me with very little to do.
I still play the games I do have for hours on end, though. I'm having a blast with Sonic and the Secret Rings and Mario Strikers Charged