What's your opinion on the correlation between popularity and quality? By popularity I mean measurable results like CD sales, Billboard charts, theatre grosses, etc., while by quality I mean your personal subjective judgement about what's good and what's bad. Since this is a music site I'm thinking mainly about music, but if you want you can apply the question to movies, books, TV shows... whatever.
To put it a different way - If something's good is it likely or unlikely to be popular and vice versa?
Is the correlation between popularity and quality
