In the United State--at least where I live--movie theatres have gotten very expensive... while home TV has gotten better and better. Even if you do not have an expensive "home theatre system," playing a DVD on a 40" HDTV gives you a picture as good as you used to get in the movie theatre.
Theatre concession stands (where they sell snacks, popcorn, etc.) have always been a rip-off and it has only gotten worse.
I still like to go to the movies once in a while, but I never feel that it is good value for the money.