Why isn't Rush gone by now? This isn't just another Rush whine but some serious questions.

[onenote]

5. Simple math

He has upset people who don't listen to him. Because his advertisers seek business from both those who listen to him and those that don't, they made the economically rational decision to bail on Rush (there are a lot more people who don't listen to rush than that do). But for the radio station that carries Rush, they have a lot of listeners who listen not only to rush, but to other programs on their stations and they don't want to run the risk of alienating the loyal rush listeners so that they abandon the station and its other programs. So they leave rush on, since even if he isn't drawing in ad bucks for his show, keeping him on keeps the ad revenue flowing to their other shows.