I thought this was a subscription model, like Netflix, you know, £5 a month and get any game on 'Now' at the time, things come and go and you can't play everything at once.
Maybe these prices are entire Now, not just one game as you can but that game for less than that.
Hold on, is this up to a time to play? So, like the timed trials on PSN, play a game fully for an hour, in this case play a game fully for 4 hours or 90 days. I don't think I've played anygame for 90 days total time.
Hmm, pie.