TWRoO on 29 May 2008
Wii Sports has an attach ratio of 50% in Japan... and from now on that is only going to go down.
Wii fit attach ratio in Japan should reach 50% though, and if we are talking balance board alone then it could go almost to 75% if it is sold seperately and some good games appear for it.
However that is just Japan, it will not manage such a feat elsewhere.
