Here's a depressing article about 3d at the CES show. Some points I agree with, some I don't. I do think that they most people don't want to deal with the complexity of 3d.
I mean, for my dlp set, I had to get a 3d kit, set up an emitter, some other box, then the glasses, and to watch a 3d movie, have to scroll through a couple of menus to toggle the setting to activate the 3d. And, even though I have all this 3d stuff going, I occassionally get a br that won't play , get a message that my equipment is not 3d compatible and then I have to trick the player into thinking it is.
Of course, there are other depressing issues, like no more 3d espn, and a 3d channel on Directtv that is really like a sales loop.
So, it is no wonder that joe sixpack doesn't want anything to do with 3d; he just wants to sit down, turn on one flip'in switch and watch.
Although the number of people who shoot 3d is small, I don't think it is going away. I think the prices for used US spec panny 3d1 cameras are holding pretty firm, that's pretty telling. I occassionally send my 3d prints to Snapily.com and my coworkers are pretty impressed with those lenticular prints of me and my family.
I think I can draw an analogy to stereo equipment- I like to listen to vinyl played through two 9' electrostatic speakers. I know a lot of people content to just listen to music off their ipod. The same applies to 3d. People rather make a video with their cell phone than with a 3d cam (or any camcorder).
Until people see how wonderful 3d is, the products will be far and few.
Oh, and about Vizio walking away from 3d? I have always thought that Vizio made crappy tv's, stuff that would serve as door busters on black friday.