freedquaker said:
You can see the more detailed original analysis here: http://gamrconnect.vgchartz.com/thread.php?id=178341&page=1
However, In addition to all that, quick analysis between the first and last halves of each between 2007 and 2012 inclusive for PS3 and X360 showed an almost exact doubling of sales in the second half of the year compared to the first, though with a variance. The jump was smallest in 2008 with +83% while largest in 2009 with 125%.
So this means, based on historical data, the combined XB1 and PS4 sales are likely to increase between 83% to 125% from 6.1 (4.2 + 1.9) in the first half of 2014 to a figure between 11.2 and 13.7 combined, reaching up to total of a figure between 17.3 to 19.8 million annually.
Based on the current trend, around 67-70% of those sales will belong to PS4, and the rest to XB1, while individual figures are as follows...
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current trend doesnt include tier 2 countrys for xbox 1.
until they sell zero units there and the rest of the world stay the same, this figure has to decrease...
if they sell some units there, the rest of the world has to increase for the ps4 marketshare to stay at 67-70% for ps4