ICStats on 28 November 2014
I'm saying Genesis (so between 40M and 49M).
If the generation was as long as the PS3/360 generation then it would easily pass that, but I don't expect that. XB360 had 8 years before XB1. I think XB1 will have 5, 6 years at the most until a successor, and Xbox doesn't have a good track of selling strongly after that.
My 8th gen collection
