WiiU Lifetime Sales Minumum Estimate 16 million

[Lonely_Dolphin]

So to show how it could go down:

2012 + 2013 = 5 million (already sold)
2014 = 5 million (peak year)
2015 = 4 million
2016 = 3 million
2017 = 2 million

That'd put it's lifetime around 19 million. Pretty lame, but that's life!