I think you're merely using faulty logic to try and back up your assumption, where hs it been shown that casula/nongamers are not reliable demographic, they've never been hooked before the DS and Wii.
Wii is not a cellphone, nor is it likely that those causals, nongamers will move onto something like PS3 or 360, they didn't buy the predecessors to those two systems.
A few things, PS2 did not sell much more than PS1, and PS1 was the first true global console (compare its release to that of the NES and you can see the NES was a much smaller release outside of the US and Japan), not to mention the poulation growth from the release of the NES to the PS1
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)







