My wife and I still go to theaters because we go to matinee's, and the early ones usually don't have any kids since they're mostly in school at the time. The theater we go to has a quite decent system which has been upgraded recently with new 3d projector's and a new sound system. It has a much brighter picture now because of the update. I've gotten to know the theater owner, and so, I get special deals from him often. I like the scope of a big theater screen.
At home, because of its age [101 years now] and the layout of our living room [HT room], it's not possible to put in a 3D HDTV bigger than 55". I do have almost all 3D movies out so far., and my general collection is boasting 200+ BD's and a good assortment of DVD's as well!