Why is everyone complaining that they want the full game? This is a business where people try to make money. You don't just expect someone to come up to you and hand you over a Wii, do you?
I'm not sre if this is the place to post this, but... I don't think people should pay for 4-player games? IMHO, they're an integral part of the game, not an 'extra'.
Sorry for the multiple comments, but I think there should be a rejoin button, and the game should pause for 30 seconds, because I just got booted after a 30-minute game and let down my ally :(