I can't speak for everyone, but for me it is just another reason to wait and watch the film at home.
why wait? i can't think of any 3D movies that have been released lately that didn't also come out in a regular version. there are a ton of theatres that don't have 3D projectors and a lot of people don't like it or don't want to pay the extra money to see it in 3D. i just recently saw hugo in standard projection at a theatre that had both versions playing.
It's yet another reason to stay away from cinemas, not the only reason. The non-3D versions that do play around here tend to play in the smaller salons, and for example in the case of Tintin, only the swedish dubbed version plays as non-3D. So to see the film with original sound I either see it in 3D or see it at home.
why wait? i can't think of any 3D movies that have been released lately that didn't also come out in a regular version. there are a ton of theatres that don't have 3D projectors and a lot of people don't like it or don't want to pay the extra money to see it in 3D. i just recently saw hugo in standard projection at a theatre that had both versions playing.