I dunno; I think 3D is probably more compelling for games (immersive+interactive) than it is for movie/tv content (immersive+passive).
However, I think it's egregiously egotistic to expect gamers to pay huge amounts for what is essentially an accessory. The move to HDTV has occurred because creation of HDTV sets became very competitive, so it became very cheap. It became competitive because governments moved away from analog broadcast to digital, and TV makers saw an opportunity to sell a lot of boxes in a very short time. They did. But by no means does it mean that it will happen all over again this soon. I expect very slow uptake of this technology.
Also about dev for 3D? All kinds of stuff that works really easily in 2D, it's not as simple to pull off in 3D. Think about how trees and bushes are rendered, especially in something like RDR or GTA IV. Those crossed-up polygons they use for bulking out leaves look like crap in 3D, but they look OK in 2D. OTOH apparently some stuff with normal maps can really make graphics pop cheaply in 3D. It's a new thing to consider, research, and as has been pointed out already: bug check.