I think part of the problem could be the state of pop/rock music today (it sucks). There probably is more loyal listener-ship amongst the hispanics/illegals, and thus a chance to sell more products via advertising. I expect many more discriminating listeners have migrated to XM or Sirius Satellite radio (something I am considering). Most of the time, I am playing CDs and jamming to Handel, Bach and Telemann as I drive around Houston.
They had some great announcers too, Eamon Grant, Ray Landers, Anthony Rahe, among others.
Sirius rocks.