You very nicely stated what my own feelings are on this subject! In further support of your comments, I can give you a real life example: I stopped buying CDs years ago. In fact, the last CD I bought in a store was Thomas Dolby's "Astronauts and Heretics." (That should date that statement). I just wasn't hearing anything that inspired me enough to want to go out and actually buy the CD. They were too expensive, and chances were I would only like the one song on the album. $18 for one song, and a half dozen tracks of junk was too much for me.
Come along Apple's iTunes and internet radio! All of the sudden, I was able to listen to music that I would have otherwise missed out on because I never hear it on the radio! I heard one song from an artist that so struck me, I went on a music safari trying to find other songs by him. After listening to MP3s of his music, I knew I liked it enough to buy his music. ALL of it! I bought his entire catalog! Six disks in one shot! A sale that otherwise would never have happened if not for an alternative channel of distribution.