Valid point Twesterm.
I don't think it will ever be a console selling feature one of the reasons being the glasses.
However the market will be substantial to warrant support in 3-5 years.
It just looks really cool for some games and I know people that won't even game in 2D anymore. I personally am getting Mass Effect 2 on PC instead of 360 mostly cause it looks like a game that will kick ass in 3D.
Also, at least they are getting better with the glasses designs. http://www.iz3d.com/3dglasses