Also, Pixar's version of 3D is very tasteful and restrained, limited solely to presenting a wider and more immersive environment. There is absolutely no gimmicky throwing things in your face or anything of that nature, and you hardly notice the effect at all after a while, it just becomes a natural part of the image.
The same can't be said about many other 3D movies, unfortunately, which is why I usually avoid them. That, and having to wear those goramn glasses over my real glasses is uncomfortable, so I only go to 3D for movies I'm really interested in. The prequels and special editions don't even remotely qualify for that, although I'll admit to having a little bit of morbid curiosity. But I'd still rather watch the GOUT with all its flaws than give in to any of the revisionist rubbish, no matter how shiny the presentation.