So I'm not sure that there's a difference between "disrupting" and "competitively innovating". I don't know if it's as easy as your stating, because the F2P market is pretty wide already -- there are a ton of games that you can play for pretty much free in every genre online these days (and there were, when WoW came out, also).<p>Also, WoW's marketing was the only thing that was innovative about it, the game is subpar in just about every other aspect, IMO.