To date, people hate time-based charges and won't pay for it. (See also microtransactions per webpage view) Even a la carte is of dubious interest. Buffet style is successful: pay monthly get all you can. Netflix, cable TV, pandora. More likely is a monthly gaming service, as Sony has started with their paid "gold" system. Get free games, to play and keep, so long as you're a member. I'd bet its extended in the future, like Amazon Prime and Netflix, to be an on-demand service.But paying per minute of gameplay? Nope.