I also think you have to reflect on the fact that in the first year or so people were predicting max PS3 sales globally would be only 20 million; death spiral and all that. So comparing ps3 first year to xb one and coming up with 25 million lifetime US is not good analysis.
I don't see Xb one either having an equivalent of the PS3's 2009 slim/price cut effect, nor do I see it being on the market for as long. I give Xb one 5 years on the market as the current gen xbox and it will not sell more than 20 million in the USA in that time. The reason I say this is not because Xb one will sell poorly in the USA, but because the only place it will sell well is the USA and that won't be sustainable beyond 5 years.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix
