Scientists confirm this as proof that people like free stuff.
Within a month of going free-to-play, superhero MMO DC Universe Online got a whole 1 million new players, with an even 50/50 split between the PC and PS3 versions of the game. Other reports also say that the game got boosted up by 1000% in terms of player size. Apparently people love to try out free games, who knew?
Of course, whether these 1 million players actually stick around and play the game, or just give up with a ‘meh’, is a question best left unanswered for now.