I've also spoken to college kids who when asked what they're favorite local station is, say they don't have one. Most if not all of their music discovery is done online, through friends, or through certain *ahem* various other networks. Especially true with the college kids whose internet access is about 2-3 times faster than what you and me get last I heard. If they listen to any 'regular' radio it's usually the college radio station in town. Last time I was on a major college campus (2 years or so) I saw nothing but iPods and Mp3 players.
That's where their listening habits are. Personally, at age 35 I still do listen to SOME regular radio, NPR especially, since I am at that age where I remember when radio was still pretty good and had plenty of local content, but I also do a lot of that listening online through the iPhone or through a web stream, even the local stations when I want to get a quick weather forecast or something. I also remember the first day I heard my favorite station at the time had been bought and turned to utter crap by clear channel (much the same reason I left satellite in the first place.) If you are below the age of 25, chances are better than average you've never heard anything besides a short snippet of regular 'local' radio and aren't a regular listener. As many young people here that are into satellite radio as well as iPods and other things, that proves it.
Hell, even me, as it stands now I couldn't tell you who the regular DJs on our local stations are. Mostly because anything but the morning shows (which are crap) are usually automated. That's also the one thing that may very well hasten my return to satellite radio in the future, although certainly not for the music, save for the occasional special or two, and the stuff that neither Slacker/Pandora nor regular radio do well like Classical and Opera.