Tuner vs Satellite Radio


I always intended to add a tuner to my system and the logical choice seems to be one of the Magnum Dynalab models. However, the recent introduction of satellite radio (Sirius and XM) offer an interesting alternative. Digital quality, no commercials, and a wide array of music to choose from. Then of course, there's the other option of adding digital cable with its music stations playing through my system. Can anyone make an argument for choosing one over the other? Which will deliver the best sound quality?
tonyp54
Brian... thanks for two great links. I now have a much better understanding of tuners. I look forward to adding a nice vintage model soon.
Brian, sorry for not checking in sooner. I finally settled on an old Kenwood 8300. It was a tossup between a nicely modified 7500 and the 8300, which I thought had a little better bass and the extra multipath/deviation meter. Thanks for the tip, I never would have thought of a vintage tuner otherwise. Now I need to decide on the antenna.
Tony, congrats on your purchase! (Nice tuner.) Did you compare it at all to other tuners? Are you happy with your decision?
Yes Brian.... I compared it to a few tuners including a modified Kenwood 7500 and a new Magnum Dynalab. I must say you were right about going with the vintage models. I found them to have better reception and a nicer, less "mechanical" sound. I am very happy with my decision and thanks again for the advise.