Again, you are assuming that they don't have the hardware moving power, yet you have no idea how much hardware NSMB Wii will move, or how much the Vitality sensor will move, you say you look at history, how much did Wii fit and the Balance board move when it first came out?
Also you are assumign that GT5 will have any of the affect that GT3 or GT4 had on PS2, you're dealing with a much smaller base , and much later in its life than with GT3, not to mention its the third place console compared to first place with PS2
Predictions:Sales of Wii Fit will surpass the combined sales of the Grand Theft Auto franchiseLifetime sales of Wii will surpass the combined sales of the entire Playstation family of consoles by 12/31/2015 Wii hardware sales will surpass the total hardware sales of the PS2 by 12/31/2010 Wii will have 50% marketshare or more by the end of 2008 (I was wrong!! It was a little over 48% only)Wii will surpass 45 Million in lifetime sales by the end of 2008 (I was wrong!! Nintendo Financials showed it fell slightly short of 45 million shipped by end of 2008)Wii will surpass 80 Million in lifetime sales by the end of 2009 (I was wrong!! Wii didn't even get to 70 Million)