Unlike Trelja, I enjoy the variety that Satellite TV has to offer, and gladly plunk down my cash for the channels. I do not however see any need for the music channels, but then again, if it weren't for talk on the FM band, I wouldn't even listen to broadcast radio.
The Boston market, which is on the large side, caters to the masses to make a buck in broadcast radio, and I can't imagine the music selection will be any better over a satellite feed. I don’t have an MBA from the Wharton School, but it would seem they have to reach out to a market that will listen to the music, probably my kids, even if they aren’t ultimately the ones that will pay for it. I'd much rather take my chances in making a purchase recommended by folks that listen to and enjoy music found on sites such as this, than endure the pain of searching for music that I may enjoy on the radio, whether it’s tuned frequency modulation, or de-scrambled, decoded bits.
But, I bet it succeeds!