The "fair" price is whatever they want to charge--although they behave that way, the record companies and distributors do not have a monopoly, and buying music is totally discretionary. Obviously there are enough people willing to pay $18 for a CD so they charge that much. They could really save themselves a lot of trouble if they could just get one person to pay $1M per CD!
We have a more basic problem,which I see as a lack of self-confidence such that not only teenagers, but young and not-so-young adults are afraid NOT to buy what the advertisers tell them is in. They have to listen to what's IN,even if it is absolute degenerate garbage.
And why don't the girls reject all the so-called music they says it's fine to beat and mistreat women ??? And reject the males who play that crap?
Sometimes people get what they deserve- ; they always get what they will settle for.