They're not the primary target market. They're smart enough to buy it for $12 or less on whatever other preexisting hardware they have.No one in their right mind is going to drop $60 on this if they have a Mac/PC/Console that can run this game also...
It is the equivalent of anyone with a fully furnished and functioning kitchen saying cooking at home is cheaper than eating out.
For those living in a room without any way to cook... it is economically cheaper to outsource a meal from Mickey Dee's.
Those are the sort of users Google and Apple are focusing on.