I have been a big fan of WoW and other blizzard games for years. Activision now owns a piece of gaming history. Blizzard has a market much like Wal-Street in their games. They are the best at PvP and total game immersion. Long before Facebook, Blizzard was connection people from all over the globe in chat rooms text and via teamspeak/ventrilo voice chats, for a common purpose of beating the game.
Point: Blizzard knows gaming, they know global gaming, they have global fans/customer. They are in "The Game".
Ask yourself, How many times have you played a game with players from all parts of the globe at the same time. My answer is countless via Blizzard MMO.