Timing was perfect for me.  I got my Droid and my Sirius sub was about to expire.  They had my old credit card so I didn't even bother calling in to cancel.  They've called me a few times, but I already flagged their number.
I used to drive 45 minutes one way to work, now around 10.  I also traveled a lot and the satellite was great, now I have very little travel.  However, with the free widgets on the Droid, all is good.  Many options of personal programming that I got on Sirius, but now I do not have to pay.
I lost my desire for satellite when my Stiletto died for the 2nd time.  Sirius would only replace it with a cheap car unit, that did not record.  I tried it for a few months, but missed the portability too.
So now my droid replaced my GPS and my Sirius unit on my dash.  Since it is also my phone, I have gone from 3 devices in my car to just 1.
So in reality my Droid has saved me money!  My data went from $47/month with the Blackberry:blackberry: to $29.99, cut my satellite sub so that's another ~$15/month.  Not bad!:motdroidvert: