About a third of the population, myself included, can't really watch 3d movies on flat screens (hardwired focus to crossing in the brain). Having all the marketing try very hard to shove into my face a feature that literally gives me a headache was a nuisance.

Not saying your experience isn't valid, but it's actually the too-tight glasses for my big head that give me headaches for 3D movies, not the actual 3D feature.

Don't care enough about 3D to buy my own 3D glasses though, so solution (don't watch 3D movies) is the same.