Well, I just cancelled our Satellite Radio. It was costing us $393/year for two radios, ever increasing the costs every year for the same service.
Since 2008, we've wasted ~$2700 on this service (actually less, because is used to be $119/radio in 2011), which I was more than happy to pay for, because I can't stand listening to consuma sucka commercials. However, this consuma sucka is going to start using the multiple mp3 players and Iphones we've accumulated over the years instead, and invest the $400/year.
So challenge accepted - ditch your satellite radio service!