I am a big believer in subscription models — both for software and for media. As such, I often bring up the topic with friends to get their take, since more publications are moving from ads to subscription, and more apps are doing so as well (for instance, through in-app purchases in the App Store for iPhone).
The consistent view I have gotten is that people absolutely hate subscriptions. That hate is particularly vituperative when it comes to content, but software is given no mercy either. And listening to some of my friends and their stories, it seems people will go to the ends of the universe to avoid paying some of these fees.
That said, nearly every person I talk to does pay for something,