I also have the assumption that apps are shoddily coded. Whenever I go to the App Store I am looking for a specific app because my assumption is that a random app I find is going to be useless and this goes 10x if the app is promoted with paid advertisement. Personally I wish the app store was like the way Google's home page was in 1999 -- the search functionality is the only thing I care about and they hide it in the middle of a lot of not-so-distracting fluff because I don't have the slightest interest in it.