It's called business mate, Bungie is getting cozy with Sony because Sony is a direct rival of Microsoft in terms of money making and Bungie has cut ties with Microsoft. If Bungie publicly announces that they will be releasing exclusive content and gets all these special treatments for Playstation players, the player buys a PS4 or keep their PS3s and Sony gets even more richer. And the richer Sony gets, the happier they are. Plus the majority of us are in the Xbox systems anyways, however if somehow the players turn their backs on the Xbox Consoles and switch to the Playstation series, Sony gets a bigger population of consumers and they get richer. And Microsoft gets a big thorn in their side. Sony also becomes happier out of this outcome. So all this exclusive content and etc. is for getting Sony to like Bungie and establish a great business relationship with each other like Bungie did with Microsoft. ^_^