I know how you feel - recently I was using my Wii more for Gamecube games than anything else. However, in the past few weeks I've been racking up a ton of hours on Excitetruck, and I've really had a blast playing with Everybody Votes.
If you've not yet played it, I highly recommend Excitetruck. I've never been one for trying to unlock every last part of a game, but I'm one S grade away from every track and almost have unlocked every paint job! It's highly addictive, has great replayability and controls, and is a great example of why I purchased a Wii in the first place.