The release date has finally been set for the Xbox One in it's first tier countries. It comes out a week AFTER the PS4 contrary to speculation going around online. While I don't think a week's head start will gain the PS4 that much of an advantage, do you think the average game consumer would be swayed to buy the cheaper console sooner?
http://news.xbox.com/2013/09/xbox-one-launch
http://news.xbox.com/2013/09/xbox-one-launch