I personally would never pay straight up 10 bucks for cover space. It's easier to swallow when it's a buck here and a buck there. And I would most definitely never cough up 50-60 for a premium game. Especially considering that other primo games range from 5-15 on Android. At least from what I've seen. Pay the same price as a PS3/4 or Xbox game? Don't think so!
From IceX: For the cover slot increase, I completely understand where you're coming from in that regard. However, announcing price changes is very much a double edged sword for precisely the reason you state. In changing the price, we want to see what the user reaction is. Do players still buy the item when the price is increased or do they stop at a certain point? Is that point before or after the old one? When we figure out the break points, we can figure out the point at which the most customers are still satisfied while still providing the item or service in question.