The whole gaming worls is going Free 2 Play with stores or such to make money after. I can't stand stores in most sandboxes like AWS. The best way of the dev making money in a sandbox without a store is allow boosting your steps thru the game with money. $10 is less than a box and less than a month of WoW. Most people will put in $15/$20 because they might as well have a few money AWD. If 100 new players put in $20, thats a good foundation for the devs every month.
