3D is like Plasma/LCD 5+ years ago. To darn expensive for the masses. By the time 3D is mass market price we will be next gen.
Also here is an article talking about 3D. I kinda agree with it.
http://articles.moneycentral.msn.com/Investing/top-stocks/blog.aspx?post=1530251
Its libraries that sell systems not a single game.