@ fordy
Microsoft's tactic of buying exclusivity is usually geared towards paying for lost sales for by not releasing (on time) the PS3 version plus some extras. (such as Mass Effect 1 exclusivity and BioShock timed exclusivity) I think that's a destructive anti-competitive approach.
But Microsoft does not only do this to PS3 gamers, interesting also to Windows gamers. For example Alan Wake wouldn't have been the subHD game it turned out to be on the original PC target platform.
I would wish Microsoft started investing in their own game development capabilities and by that I don't mean taking over successful developers developing for rival systems such as Bungie (Mac developer originally) or Rare (Nintendo developer originally). IMO that's not a market enhancing approach at all.
