I buy CDs until I can't afford to any more. Then I download music until I have more money. CDs are infinitely better and I wish I could have my entire collection on CD, but until I have a proper job I won't nearly have enough cash. They look and sound loads better. Also you can't have a signed copy of an mp3. That's something pretty special to me. It's also very satisfying to have a great collection with a physical presence, and even though my collection is pretty measly (close to 300 CDs) compared to some people it's still nice to look at.