You know what I don't want? To read bunch of stories about how the Windows Store is a "terrible opportunity for developers" and "no one is making money" because developers recreated the same economic problems that plague the iOS app store in the Windows Store.
Developers learn from their mistakes when they screw up their code; they should similarly learn from their mistakes when they screw up their marketing and pricing. So far, haven't seen much of the latter looking at what's currently available in the Windows Store.
The bottom line is: as an app publisher, how you set price / payment expectations with your user is almost more important than what your app actually does if your goal is to build a sustainable business for yourself. Taking the time to survey the ecosystem and realize that the market forces of Windows 8 are different and potentially much more lucrative is well worth the investment.
I'm not the only one here who felt your "call to action" felt like a call to collusion or bitterness at not being able to squeeze more money off the Apple app store. If I make apps for the Windows store, I'll charge what I feel like charging, thank you very much, and I'll have no one's moralizing lectures. Thanks. :)
Sorry you felt that way, but that's not what I said :)
You can charge what you want; just don't be surprised by the results if you don't attempt to learn the market and realize your own value.