__________________On a related note, another good reason to purchase from Mac App Store are the generous licensing terms i.e. MAS purchase allows you to install the app on all your Macs. In contrast, when you purchase expensive apps like Scrivener and ScreenFlow direct from the developer, you're usually restricted to two activations.
Sorry, some people buy apps just for the sake of adding apps....that is not me...if something is not broken, why fix it. The licensing terms are of no consequence to most people including me.