That's a very valid point. I think it's more about the experience of going there with your friends, ordering popcorn etc.

I've been to the cinema alone, but that's usually only if I reeeally want to see the movie ASAP and it's not out anywhere else in the seven seas (if you know what I mean). Other than that it's always been about going there with friends. Kind of like music festivals - I enjoy them for every reason except the music part :D (with exceptions)