Howdy, all. First post - thanks for bein' here. ;)
I own a 3D TV (http://reviews.cnet.com/flat-panel-tvs/lg-infinia-47lw5600/4505-6482_7-34468431.html) and a 3D BD player. It's a passive 3D system, and yes, that means half lines, and yes, that means some aliasing. And this is where I get most of my 3D - not in the theater.
And you know what? I don't give a crap. If the movie's worth watching in 3D, it's worth watching in 3D. The aliasing ain't that bad, and the feeling of depth is real. My favorite example is "Thor." A great film? No. A lot of fun? Hell, yes. (And funny, too! Nobody ever talks about the funny.) And for me, the 3D brings me more into the story, into the action, than 2D does. There's a thrill in seeing the characters I care about (I'm kind of a Marvel sap from way back), in a 3D space. It makes it more real for me.
I think another point that's worth noting is the difference between live action 3D and computer animated 3D. I've seen a noticeable difference in the quality of the 3D. The animated stuff is much more watchable, and I think that the 3D is better used in service of the story. (This is just a feeling at this point - haven't made a study of it.) I imagine this is because, since it's animated, the creators can put everything and everyone EXACTLY where they want them, when they want them, and at whatever angle. The amount of control is (I imagine, if we could calculate such things) exponentially greater.
Also, I notice one topic so far absent here, and if we're discussing 3D as a technology, and not just its uses for film, it should be brought up: 3D gaming. Now THAT is immature tech. I think it has most to do with the fact that the player is driving the experience, and it's just going too fast, and things are changing too quickly for the viewer to parse the 3D data. Spin around to roast that zombie - and there's no motion blur, you're looking at a wall, and then suddenly at an alleyway with the zombies running toward you - it's disorienting and obnoxious. And it's in gaming that I notice the aliasing more, and the loss of resolution.
I'm a videographer for a living, so I know a thing or two, but I've never shot in 3D. For these purposes, I'm just a consumer who reeeeeeally likes his 3D TV. ;)