buying them used is far more economical than busting the bank for new copies. But instead of sweating over row after row of titles, you can rely on the computerized inventory system at CD Warehouse.

Break out the bike and pedal to the Record Exchange, where thousands of used CDs, tapes, records, and video games range from 50 cents on up.

Once Sony would no longer accept returns on those CDs, it only made sense for stores to sell them as used at a reduced price, which, in turn, led to a willingness to buy used CDs from customers.