The great thing about all of the 3D push from the industry is that the 2D display prices are falling because of it. Now seems to be an excellent time to buy a 2D display, price-wise. I'm not that impressed with the 3D movies overall. I get a headache after about an hour or so. Why would I want a display that can do that all the time.
I am, however, excited about the possibility in gaming though. The ability to having two people racing each other in a racing game and each can view the full screen. Maybe five years down the line, if the 3D thing is still around, I might get a 3D display for that purpose if I need a new display.