Wii Fit U is a tough read. With its long, free trial, and the "get a meter, get the game free forever" promos running for several months now, on top of there being literally millions upon millions of Wii balance board owners out there, this game can easily sell completely off the radar. The only people who know the real numbers on this one are Nintendo, not even retailers have an accurate gauge on it.
As someone mentioned before, the Wii Fit Meter might be a way to gauge it (if someone buys the Wii Fit Meter, there's only ONE game it could POSSIBLY be for!), but unfortunately no one's tracking that except Nintendo as well...







