orcishgamer: That tablet thing is sold separately, from what I read, and will make up the difference to around 600:)
Except you're only meant to use one tablet. They're going to carry on selling Wiimotes, nunchucks and classic controllers.
They said they might support two tablets in the future, but there aren't any games announced yet that could use two.
My point is, it's intended to be either:
one tablet or one Wiimote+nunchuck (or whatever) for single player
one tablet and three Wiimote+nunchucks for four players
or four Wiimote+nunchucks for four players
Everyone seems to have this weird idea that you're supposed to get 4 tablets. It comes with one tablet, that's all you need.
EDIT: Editninja'd by Ash360!