How much will you pay for an iPhone app?

I admit that most of my iPhone 3G apps are freebies. I’m too cheap to actually pay for apps, the iPhone 3G doesn’t have the cheapest plans out there so I have to scrimp and save. iPhone News says most iPhone apps downloaded are the free ones. Is that very surprising at all? Who will deny a free iPhone app? Especially if it’s a popular iPhone app like Tap Tap Revenge or Pac Man Lite. Most of the free apps try and get you to buy the full version. Many other apps are sponsored which I find ok, if they’re giving me an app for free I might as well have a few ads in it.