Last gen Sony managed to outsell Xbox despite a year's head start, a $200 price disadvantage, and a difficult to program for console with all the problems that caused as well as having virtually no big online component at the start (or until 08 really). They just needed to avoid one or all of those and they would have won. The fact that they turned price into an advantage and got the whole DRM thing to take advantage of just boosted them into the stratosphere.