I listen to 70s, 60s, Fox Headlines, Patriot, Urban View, (mostly talk)
Those channels are listened to by mainly older men. Not a target of the types of advertisers you would prefer. Instead that audience attracts medical services, drugs, insurance, legal services, financial services, and 1-800 numbers. Once again, compare the ads you hear on Sirius with similar stations on broadcast radio. I bet they're very similar