I've said this before, a nintendo dominated industry scares developers becase they know they can't compete, Nintedo has arguably the most talented devlopers in the world, and they design their consoles around the wishes of those developers, most third parties do not have the necessary skill to match nintendo developed games, there are a few that come close, but by and large most developers pale, the PS3 and 360 are preferred because the average level of quality is lower, and they can mask gameplay imperfections behind prettier graphics.
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)