No, it's a gimmick now like it was back in the day.
3D gaming isn't that great. I've tried it and it's kind've cool at first but when your playing the game for hours, it starts to hurt your eyes. I'd rather not go blind by the time I'm 30.
These.
Besides, I really don't see 3D sticking around until they fully remove those costly and bulky, or cheap and flimsy, glasses from the equation. I'd rather not have to take off my glasses that help me see to put on some glasses which are a pain to wear and make things harder to see just to get a relatively small positive bonus to "IMMERSHUN." If anything, wearing those glasses made me feel less immersed in the world.
EDIT: Also, I know they're now starting to make TVs that have 3D without the glasses, but until the prices of those sets become relatively affordable, and the 3D effect becomes applicable on the computer monitor level (again, having to become relatively affordable as well), I don't see it sticking around.