360 & PS3 released in 2005/2006 but didn't peak until 2011, 5-6 years after launch. This was due to 360 getting a large mid-gen boost from Kinect and PS3 took a long time to get into mass market pricing.
Basically it just means, PS4/XB1 aren't likely to have such a late peak, most likely in 2015 or 2016, which is very common for consoles to peak in the 2nd/3rd full year.
PS4/XB1 are both sub-$400 and likely to hit $299 this year or next so price isn't a huge issue for them and unless Virtual Reality headsets really take off sometime in the middle of this gen than its not likely we will see such late peaks for these consoles.
When the herd loses its way, the shepard must kill the bull that leads them astray.







