Xbox One prioritised a different set up than PS4. It costs more because of it's Kinect and HDMI in functionality. To keep the price lower, they sacrificed a bit in APU specs. Simple as that. I'm sure XBO will pick up in sales when it's TV features become more prevalent although it'll probably become more like a set top box for it's life like how PS3 was a bluray player for the beginning of its life.