I never, ever purchase Audio CDs. Why? They are way overpriced. I simply will not pay $15 for some newly released album that might have 2 songs I care for.
On the other hand, if prices were lowered to $5 across the board for all CDs past and present, I would build a monumental collection. That price point would generate more sales than the RIAA could imagine - enough to offset the current markups I would suggest. After all, $1 profit on 10 million albums is the same as $5 profit on 2 million albums.
Stop raping the customer and lower the prices or get squashed by the medieval peasants.