We have a large TV for all our video game reviewing and it's connected into a surround sound system so we get the thundering noise and large image. Also at home we aren't distracted by people waving phones around in the dark and making other noises. So in general we choose to stay at home for our own more controlled experience.
That being said, we are going to go out and see Harry Potter on the big screen because I hear its images might benefit from the theater experience. I cringe at what the people around me might do to distract, I guess we'll see!
In November of 2009 I moved to a small town and there is a movie theatre in a town less than an half hour from here but they only show movies in French. I do speak French (my first language) but I absolutely hate dubbing (its a torture for me) so I have not seen any movie in a theatre since moving here. The worst for me was missing The Dark Knight Rises (i made a promise to myself to go somewhere where there is a movie theatre that shows the original versions but i havent found a job yet so i could not do that). Once in a while I do want to see a movie in French but none of these movies actually played here.