I used to think it was crazy to pay for satellite radio. But someone justified it to me like this. You buy CD's don't you? At least one a month? That's more expensive than Sirius. Now that I have it, I can't imagine not having it.
So far my Kenwood Excelon 579 model has been very good to me. It's 229 at Crutchfield, the only problem I have at all with it is it's hard to read when the sun glares on it. It sounds good, no problems with any of my MP3 disks and has a nice EQ system built in. For a middle of the road model it's pretty good.