Actually, I brought it home and found the sound quality to be so incredibly bad (far worse than most webstreams), I called and cancelled it. I got to talk to an honest guy at Sirius who admitted to me that the talk shows were allocated less bandwidth than the music, which also sounded bad. Turned out to be a fortunate call, as AAR left Sirius shortly after.
So, having dodged a 300 dollar investment(1st yr)down the crapper, I would want to be certain Marc had a solid contract with XM which, after his AAR experiences, I'm sure he would.
The web/podcast might, however, be a better idea. Don't more people have computers than XM radio? No antennas, no new hardware to buy, no competing for a time slot, and total control for Marc.
A terrestrial radio network still provides the best exposure, but the greatest investment.
Whatever it is, I'm a fan and I'll be there. If I have to, I'll invest to get a Maron show.
"At this point, what's inappropriate?"-Crow