Yeah, there are a lot of interesting thoughts.
For people who have one good eye, with another eye that can't see so well. . . 3D will look like crap.
A more interesting point that was brought up was how long it will take for excellent stereo reproduction. People were saying that when stereo in the audio world first arrived, that it actually took quite a while before they got it down. You know, something better than guitar on one speaker, and voice on the other.
I have to admit, I thought Avatar was going to look more impressive than it did, with all of the hype, if just in terms of 3D at the IMAX.
It was cool, don't get me wrong, but it sure didn't live up to the hype, IMO. Now, if this is as good as it will be for many years . . . well . . .