Okay here goes.
Wii is No.1 at the end of 2012 with 70m units sold. The PS3 has 60m and the XBox 360 has 30m.
Please note that the PS3 is still selling well after this period of time (6 years) and could very well get closer to the Wii's 70m or even surpass it.
I would expect a new Nintendo console to be released at the end of 2010 or early 2011. And a new MS console could very well appear as early as 2010.
A combined total of 160m home consoles at the end of 2012 with the DS and PSP clocking in at anything from 130-160m combined units after the same time period. This is why there are less home units compared to this generation.
Prediction (June 12th 2017)
Permanent pricedrop for both PS4 Slim and PS4 Pro in October.
PS4 Slim $249 (October 2017)
PS4 Pro $349 (October 2017)
