Just like releasing Halo this holiday worked out so well? Xbox One sold on the price cut + bundling alone. This also had the adverse affect of devaluing the Xbox One. Why is anyone going to buy it off season, especially with nothing coming out for it, when they can buy it at Christmas for an even cheaper price? Like Halo 5 will push about as many consoles as next year's holiday price will. Till then, Xbox Ones sales are going to tank.
I doubt xone is going to be devalued at all due to holiday pricing... consumers at large will quickly forget just as the DRM scandal was forgotten those that see it as devalued are the more informed consumers and will still be likely to get one anyways at some point even at a higher price if they want one. This holiday boost was huge for the branding in the US and I think MS will do just as well this year as last year in regards to sales if not better. I think PS4 is more likely to have less sales YOY 2015 than 2014 unless they pull out some major PR which they are notoriously bad at in the US