You'd think that on a conversative board like this one, more people would grasp concepts like supply and demand, prices and markets.
If the price was too high, absolutely no one would be paying it...just like you said.
Do you live in a universe where supply and demand, prices and markets follow quantum rules?
To tell you the truth, I'm not sure what you're getting at with your question, so let me ask one of my own:
Do you disagree with the proposition that if the price of CDs were really "too high," sales would plummet at a much higher rate than they have been?
It's also evident that elasticity comes into play in the market for CDs: They (and other entertainment products) are relatively inelastic since consumption has never been observed to increase with a corresponding price decrease.