They aren't that costly and can be great if you want to get that theater-like feel watching a movie on a huge screen. I've heard that there are some people who also use these mini-projectors so they can watch their movies while lying in bed. The projector is pointed at the ceiling [assuming you've got no fancy ceiling lights + fans there] and you watch your movie there. What do you guys think? Would buying a projector make watching movies in a theater less enticing [if you don't have to watch movies the first day they are released]?