I've had the opposite experience from you. I don't listen to much broadcast radio any more. I used to use Last.FM's recommender to find new bands to listen to, now I just use Spotify - after a few weeks the "Discover Weekly" playlist is spot on, even with a very eclectic taste in music (http://www.last.fm/user/voltagex/library/tracks?date_preset=...). I've discovered entire genres via Spotify and last.fm and gone to several live events that I wouldn't have even known about without services like these.