Make LoL almost f2p-charge ten bucks. If people will pay ten bucks to post on SA forums...
People will pay ten bucks to play this game. Don't make it a paywall, give people a month so if they don't have any cash available they can do it next month. Then use that 810 million dollars (81,000,000 people play LoL every month) to improve the game massively. I'd gladly pay ten dollars to have the game improve to the tune of hundreds of millions of dollars. I mean, god damn, think of how much better this game would be after EIGHT HUNDRED MILLION DOLLARS have been poured into it?