No "crack" short of anything illegal.. one way or the other.
Sure it doesn't cost that much to run server maintenance. But there's a big debt left after the launch of such games to the producer of the game. I bet Sony makes a killing on thier profits from that biz. And the DEV's get jack ****. Well, compared to Sony (or any other corp producer.)
Your best bet with these games if you don't want to pay 2 play. Forget they exist.