3d is a fad. Your brain already translates 2d images into 3d perception, ie when a game on a 2d has 3d graphics your brain already makes the connection and perceives depth. It doesn't need actual 3d to do it. 3d is not as sharp and gives me a headache. The new high frame rate 3d is better but I still like classic movies and regular games more.
I think all this 3d stuff will die when more 4k tvs come out. That'll be the next hot thing, but it'll have staying power since it's actually useful.