In light of Embracer's acquisition of Borderlands creator Gearbox, just part of a multi-company purchase announcement, I thought I'd look at an issue that I presume a lot of readers have been thinking about recently. Possibly while wearing money hats. Why are some companies in the game biz -- from Embracer Group to Keywords to EG7 and beyond -- going on studio buying sprees right now? (I did make a joke late last year after Embracer bought 12 game studios and a PR firm recently: 'Scoop: Embracer Group planning to change its name to Katamari Entertainment.') Should we be worried about it, why ...