And again, there's the issue of the 2007-style over-34s--I've read surprise expected over Z100's strength among older listeners; but, think about it. How *is* it surprising?
Secretly, CHR has become the new AC; because 30/40somethings don't behave the way they did 20 yrs ago, or the way that radio execs think they still do. They're more prone to embracing than rejecting the "contemporary", they're not prone to being hyper-reactive about "hard rock" or "rap", etc. About the only way they're "showing their age" is through their identification with radio, with CHR, with the medium of their youth. And believe it or not, those are what pass for 2007-style casual/conservative music consumers--the simple fact that they're relying on such radio proves it.
Same goes for "advertiser friendliness"; 18-34 as a smokescreen for older, just as cosmetics companies use young models and starlets in order to reach older.
As for what happened to AC and its core listenership in this breach; well, consider who on earth would listen to Delilah.
In my skeptical mind, whenever anyone trots out a swath of stats as wide and divergent as "18-'34" I feel they are just toying with me.
Media in general, radio in particular there is a huge difference from one end of that sample to the other. While the upper end of that sample have IPODs etc. they also have the radio habit, twelve to eighteen, in my recent experience does not.
But remember, too, that it isn't just the vertical division btw/ the 18's + the 34's; the non-uniform-bloc issue also increasingly divides itself laterally, according to cultural and/or class lines. It isn't just young listeners; it's also what might charitably be called the "white middle" that's in eclipse.
And, given that he specializes in the Latin-American "growth demo", David Eduardo ought to know that as well as anybody--though I don't know why he (or for that matter, his critics) never directly addresses that particular cultural point, unless it's somehow deemed too "politically loaded". (But why should it be? Personally, I'd take the new salsa-fied radio order over the Archie Bunker-level cultural idiocy a lot of "white" radio's been reduced to.)