why would I waste storage space
I got Sirius "free" with my car. Frankly I prefer the sound of the engine to the mindless pap they churn out here. Imagine the worst local radio DJ from the UK, throw in a payola inspired playlist of about a dozen tracks per genre station and they think it's compelling content. And then there's the talk shows. OMG I miss the halcyon days of the Kenny Everett Radio Show. Even the Archers is more interesting that Howard Stern and the other gibbering buffoons.
The highlight of listening to it was the frequent drop-outs (especially in "urban canyons").
When my subscription lapsed I wasn't tempted by the cut price offers to renew - HD Radio (though ad supported) has better quality but frankly I've found the best answer was to wire in my Zune (yes, I have the Microsoft Music Machine and I like it) into the head unit and I get to choose my own programming. If only I could work out a reliable way to stream Pandora or Last.FM I'd be really happy ;)
Aliens because... like the wonderful music of Sirius and XM they beam down from the stars as well :)