Incorrect. Bungie decided originally to sell to both. Bigger audience means more money. They had a small auction to determine exclusives. Sony won, and here we are. Sony also won early release of content. While that doesn't really early dlc, it does mean that Microsoft is delayed. In this case, by a whole year. Thanks to their decision to run the auction, they essentially traded money later for money now, as many Xbox players will quit before the fall of 2015.