Its hard to see how it will an out at this stage. I think the ps4 will get more hardcore gamers buying it. However MS MS has been targeting the greater audience of casual gamers and non-gamers similar to how nintendo successfully did last gen. This is the great unknown - will these casuals and non-gamers buy the xbox in droves (in which case the xbox will sell way more than the ps4) or will there be some sales but not enough.
I personally suspect there wont be too much difference in sales. Xbox will win US and the ps4 the rest of the world,.
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