$0.99 for an App is not sustainable pricing unless your product is mass-marketed in order to make up the numbers. My company have several products in iOS and Mac App Stores and none of them are near this price. In fact, one of our products (Websecurify for iOS) is $16 which you may say is an expensive app for iOS but this is a more realistic pricing. I doubt we would have achieved any effect if we had priced it $0.99. Btw, the next version of our app will probably cost twice as much because even $16 is barely sustainable.

I think it is time for iOS developers get their strategy checked up. I know a lot of people want to get their app/game to a lot of people but unless you have evidence that you app is reaching millions of people, it is not going to work.