I don't mean to give away professional secrets, but San Diego radio stations get together periodically to ascertain the "State of the Radio Business" in the market. It's not like we're conspiring, or anything, but we just talk about Best Practices and stuff. The organization has undertaken a formal study of the perception of the radio business, through the point of view of some large, local advertisers.
[SIDENOTE: Of course, Jazz 88.3 does not carry advertising, but we do seek and enjoy the financial support of local businesses who appreciate the value of the service we provide. From that standpoint, the thoughts of the "advertising community" are important to us, too. We are, after all, players.]
Anyway, without sounding like we're patting ourselves on the back, at least according to these advertisers, Radio, as a medium, is doing just fine, thankyouverymuch! 
struggled with the fear that radio, as we have all grown up, knowing it, is going the way of the newspaper. Well, if these advertisers are any indication of the public' perception at large, that's just not the case. One advertiser said, "The listener relationship with radio is the strongest of any medium." Another one said, “The connection with the listener differentiates it.” Finally, probably my favorite quote is, “Listeners are passionate about radio.”