You're kinda missing the point of theatres. Watching a film as part of a large audience is a better experience (assuming everyone is well behaved) because the collective reaction of an audience to humorous or shocking moments lets you pick out things that you might not notice when watching alone.
Sorry you had such bad experiences in the past, I know I've had them too. It depends on where you live. I watched a movie once in Stockport, UK and the audience was a crowd of teenage idiots who chatted and smoked their way through the movie. I certainly didn't go back to that cinema, but I went to others and had no problem.
Now that I live in Silicon Valley I don't have a lot of trouble with fellow audience members apart from the occasional bit of popcorn crunching at the start of the feature (close your mouth before you start chewing FFS!). I particularly enjoy watching classic films in the old art-deco Stanford Theatre in Palo Alto, where they have the organ coming up out of the floor and the fella playing tunes in between shows. That's an experience you definitely can't reproduce at home!