I've always been happy with XM since I got it in May 2003 and do not know much about Sirius except that the have Howard Stern and now NFL.
Comparing this:
http://www.xmradio.com/programming/full_channel_listing...=number&refsrc=hp_ex
With this:
http://www.sirius.com/servlet/ContentServer?pagename=Si...up&cid=1139320914821
I just don't see a reason to change. I don't care to listen to Howard Stern anymore (I have my reasons). Even on the rare 60 hour round trip drives across the country, I’ve never had a minute with XM where I didn’t have more good things to listen to than I physically could (I’m limited to one thing at a time). I’m usually not going to miss any one football game that much, and between the ESPN, ESPN News, Fox Sports, and Sports Illustrated channels on XM, I’m going to get a ton of coverage of the NFL throughout the week (to the point where, on my way back from Missou in late March, they were barely talking about college hoops - my favorite; nothing but T.O). I like watching NASCAR, but I don't listen to it on the radio.
I could be wrong, but I just don’t feel that I’m missing much.
BTW: How does Sirius channel 149 have the weather for “Boston / Philadelphia”? They’re 300 miles apart. XM has different weather stations for Washington and Baltimore and they’re only 35 miles apart.
Does Sirius provide any advantage over XM other than Stern, Nascar, and even more NFL coverage? If not, I'm not interested. I might switch in a second if they had full-time Big 12 coverage, let alone an all-the-time Rock Chalk Jayhawk KU basketball channel.