I have no problem with 3D. I don't get headaches, the glasses don't annoy me and it can be fun.
But for some reason I still watch 2D first in most movies. In the rare cases I might go see it more than once I check out the 3D version.
On top of how uncomfortable they are, they're dirty! Yuck.
Dirty? Don't the theaters give you new, sealed ones before going in?
Sure, but how do I know they're clean-clean? For Life of Pi, my niece and I got these smudged/bent ones that were truly uncomfortable and yucky. And yes they came in a sealed package. Go figure.
I spent most of that movie not wearing them. I only wanted to see Ang Lee's version of the ocean/water with them anyway...
She and I've decided that the next time we get a good pair of 3D glasses, we're confiscating them for future use.