I almost never go to the cinema. It's useful when you're a kid wanting to date as neutral ground (although from what I understand kids don't date anymore- just hook up).
I'd much rather watch in the Living room than the cinema. No overly loud sound. No uncomfortable squished together seats. No popcorn stuck to the floor. The cinema isn't exactly a positive experience.
We must have much better theaters where I live than you do. Here it's all big, comfy stadium seating and they do a great job of keeping the floors clean. We tend to go to early shows (4-5PM usually), so we often have the theater to ourselves. At most there are few dozen others. And even when we do go to a later show where the house is closer to full, I can't remember the last time noise was a problem.
Anyway, my answer to the question is: Absolutely not. My wife and go see a movie pretty much every week. We have a weekly date night and we like movies. There's absolutely no way we'd want to watch those movies at home, because the primary motivation for the date is to go out, to get away from the house, the kids, etc. If the theater were an unpleasant place, we just wouldn't watch movies at all because we'd find something else to do on date night and we don't have a lot of spare time for movie-watching the rest of the week.
That's just me, of course, but judging by the people I see at the theater, I'm far from alone in that. Lots of people like going to the theater. There's a lot more to it than just watching the movie.