I buy when I can, but I download a lot.
The main thing now is that I don't end up with one-hit-wonder-bands.
I buy a lot less cd's but I know I'm gonna like them.
It also made me discover great bands that I never would have if not by mp3's.
I might have 20 cd's of mp3's but I always end up listening to the same cd's I bought. Go figure!