3-D is a waste of a perfectly good dimension. Hollywood's current crazy stampede toward it is suicidal. It adds nothing essential to the moviegoing experience. For some, it is an annoying distraction. For others, it creates nausea and headaches. It is driven largely to sell expensive projection equipment and add a $5 to $7.50 surcharge on already expensive movie tickets. Its image is noticeably darker than standard 2-D. It is unsuitable for grown-up films of any seriousness. It limits the freedom of directors to make films as they choose. For moviegoers in the PG-13 and R ranges, it only rarely provides an experience worth paying a premium for.
Roger Ebert on 3D (emphasis mine)
I've only seen one 3D film in the modern era. Perhaps you can guess which one, especially if I tell you it was like Dances with wolves in space (I think my friend Cameron first said that).
I saw a few 3D films during 24 hour scifi fests at the wonderful Valhalla cinema, such as a Mothra film that I may or may not have fallen asleep in, and I felt then just as I felt after seeing Avatar; 3D is a gimmick that adds nothing to the actual film.
I'm sorry that film makers I respect, such as Tim Burton, have been sucked into the 3D hype, and I dread the coming wave of 3D productions and devices (3D television?? shudder).