My CD purchases have gone up probably 300% since the advent of downloading music. Especially in the beginning.
I hear it on the radio, I download more songs by that artist. THEN I buy the CD if I like it.
Previously, I'd buy CD singles in that case, or sometimes over look the artist altogether if I didn't hear more than a single on the radio.
I'm one of those guys who actually likes to own a REAL CD of the music I like, not some home-burned job that I won't have in 10 years. Yes that's right folks, those things DO have a shelf life.
Granted....your hard drive will keep them forever, but what if it crashes? I lost probably 70 gigs of great music to my last crash. Since then, I've used a dupe drive, and every time I buy the CD, I delete the MP3's.