Something being average denotes that it is commonplace. Not everything that is commonplace is subpar to something that is not average. Sometimes those things are just weird, odd, subpar or undesirable. And sometimes, they are indeed exceptional. And no, something being "odd" or "weird" isn't always or solely average people just "not getting it". Sometimes it's just subpar, weird and odd. I know, I know, it's a profound-sounding quote by Einstein so that means it must be relevant in every situation..

In the case of music, people with peculiar tastes will sometimes think of the mainstream music as being lame and uncultured. In reality, those mainstream listeners might get the exact same enjoyment out of listening to their mainstream music, as those with more peculiar tastes get out of listening to their music. But at least those with special taste get some kicks out of feeling superior, so they've got that going for them. You can call that the smug-hipster-bonus.

Tip: if you wait a minute or so you can reply to the actual comment. There is a short delay between a comment being posted and being able to reply to it, for some reason.

Or are you saying that a music's popularity, in terms of how many people listen to it, is how you determine it's value?

That is definitely an interesting way of looking at it. I can't say it's not a valid way of measuring it.