So first of all, no. Wii Sports is the best ;P But in all seriousness, of the games you mentioned, only Smash can be played without motion controls on Wii. So unless you are a pirate, you can't just ignore the motion controls. Also, if the games I mentioned aren't the best, then it's Mario Kart.I'm not sure the world agrees with your assessment of the best games on that platform. Or rather I'm certain that it does not. I know some believe Super Mario Galaxy, Super Smash Brothers, Zelda, and Metroid were more highly regarded.
Wii Sports was selling for $30 a few months ago. The demand on it its still really high, even though it's the most common Wii title.