This. If you want to make money fast on the app store, don't make apps for the app store. Make apps for other people. That being said, you have to be selective with your clients otherwise it's miserable.

If you are patient, and ok with making money slowly over time, then there is still a long tail on the store you can make money with. It's a much more pleasant way to make money, but unless you get lucky you'll make less of it this way (most likely).