Xevross on 12 December 2014
Sony were more interested in profits by the looks of it and it obvious PS4 made a bigger profit than XB1 because XB1 was so cheap. While it has cost them some sales they will be happier with the money they've made.
I don't think they've lost out too much anyway, MS dropping XB1 to cheap would've mainly brought forward some future purchases while more people will still be waiting for PS4's price to drop.
