an, in my opinion, interesting article about the fee to play model. i'm just going to quote my favorite paragrah,.. i'm on mobile so it is hard to post anything.
http://www.wired.com/2015/08/amazon-underground-in-app-payment/
“For many customers we were hearing that sometimes it’s frustrating when you’re involved in a game and have to stop and make a transaction,” says Amazon Appstore director Aaaron Rubenson. “What we realized is that a model like the one we rolled out in Underground, where customers can simply download and use all of the features of a given app, or explore a game without having to worry about transactions in the middle… would be wonderful for customers.”








