I guess I watch more rented movies than anything else...
I have never bought a movie in my life, no I take that back... I have, to give as Christmas gifts... I have friends that have DVD collections... But I think there are a lot of movies that you need to see in the theater to get the full effect... Star Wars and Top Gun come to mind right off... I have a pretty nice TV and surround sound system at home, but it doesn't touch the emersion effect that you get from a good theater picture and sound system...