Top 5 Reasons To Buy Used CDs

5. The ability to imagine the reasons the previous owner had for selling it in the first place
4. The fact that used CDs are unlikely to be expensive.
3. The ability to buy CDs by bands you haven't heard of without fear of wasting lots of money on an experience which you may not find pleasurable.
2. The thought that the CD itself has a history beyond being packaged in a factory somewhere.
1. The indescribable sense of joy that you get from a really surprising find or cheap rare release (in the case of an extremely cheap rare release, the ability to laugh at the previous owners who were possibly unaware of the rare status of the album is always a bonus.)

You forgot 'So you can get angry at the previous owner when you find out it doesn't work'.