I don't think the quality of any art has to do with how many people actually like the music. Some really great music is enjoyed by the masses, and some really great music is only appreciated by few. If only the masses could chose what is great and what is not, than everybody in this forum have extremely bad taste.
I am also sick and tired of this "anti-elitism". I don't belive something is good just because few people like it, BUT something doesn't have to be bad just because few people like it either. AND those few people who like it doesn't neccesarely just "pretend" that they like it.
Some examples:
I like The Beatles: The Beatles is loved by people all over the world.
I like Oscar Peterson: He is loved by a lot of people, although not as many as the Beatles.
I like Beethoven: Liked by most listeners of classical music, meaning quite many.
I like Xenakis' Evryali: Need I say more.......
All of these composers/artists are loved by different amounts of people. The Beatles by a hell of a lot, while Xenakis' fans you could count on the fingers of your right hand (assuming you have one; I am kidding of course...).
Is The Beatles automaticly better than Xenakis because more people like him them? Or is Xenakis automaticly better because fewer people like his music? IMO those questions are irrelevant, and the number of people who appreciate a certain type of music doesn't have anything to do with the greatness of the music.
Btw, I have to be honest and say that most often I like music that few people like (since this is a classical music forum, I would guess this is true for most people here), but it doesn't have anything to do with the fact that few people like it (I like a lot of pop-music /videos too

)