XM is cheaper but the Sirius site says that XM just rebroadcasts the same shit that is on FM; commercials and all. If I have to pay for it I don't think I should have to listen to commercials. What I can't figure out is if all channels are like that or just some.
Also Sirius says they have superior coverage. I am wondering if that is really an issue to be concerned about, is XM flaky?