I think it will be big but its getting expensive to own a full Wii controller:
Wii - $250 (worthless without a Wii)
Nunchuck - $20
2nd Controller - $40
Motion Plus - $20 (this is the price right?
For four people to play a four player motion plus game you'd have to spend:
$250 + $60 * 3 + $20 + $50 in the United States
Thats $500...
People are difficult to govern because they have too much knowledge.
When there are more laws, there are more criminals.
- Lao Tzu