I can understand... There are times when I do get very frustrated with me Wii and that I wish I had bought an XBox 360. Still, recently it seems that some third party games have been getting better... The last three games I've bought have been third party and all three of them were done extremely well, and have great wii controls (for example, after playing with the controls for Medal of Honour: Heroes 2, I don't see how I could ever play with the duel joystick setup again). And nearly all the games I'm looking forward to this year and next are third party, like The Conduit, The Force Unleashed, Tales of Symphonia and Call of Duty 5.
But yep, the PS3 and X Box seem to have much stronger lineups over the next year, and it is pretty sad that the Wii can't even get NHL games for itself. Still, do dust off your Wii, because there are some great games for it, besides the obvious first party ones (ie, Zelda, Metroid, Mario, Smash Bros)- you just need to hunt them out.