I just wanted to note that it's quite unlikely for games to have 4-player multiplayer using both remote and nunchuck, on a single machine. The nunchuck instantly increases the complexity of the controls by a significant magnitude (for that matter, not matter how many times you hear about intuitiveness, the remote + nunchuck combo would be the most complex mass-consumer interface device as far as I know, surpassing the keyboard + mouse combo), but the remote itself is an elegant, focused control device.
There's also the consideration of screen space; there's only so much information you can show, and showing all the characters together in one screen would generally mean that the control scheme isn't that complex, due to gameplay-limiting factors (only possibility I can think of is a split screen FPS or Madden, which admittedly I don't really like, since being able to see your enemies all the time kind of ruins the gameplay).
So far, the only games I know which mignt uses 4 controllers with nunchucks at the same time are Madden and Red Steel. Granted you might be interested in Sports or FPSs, but most people may not be. But to get a 4 player entertainment system for the price of 1 (aka XBox 360/PS3) might be worth it.
Additional note: If the remote costs $60, doesn't it mean that the console by itself is only about $150 (assuming that WiiSports is about $40)?
Additional note 2: I find it ironic that large-screen formats is the most suitable for Wii. If it can be played on a projector TV, games would be a LOT more immersive than what you could achieve using almost any other control scheme, barring the lightgun. And to play on an overly small screen would have a larger detrimental effect for Wii than PS3 or XBox 360 as well.