PS2 shipped 100 million in 5 years and 9 months. When will PS4 do the same?

[LethalP]

Barkley said:
It should have shipped around 100m units by March 2019, so about 5 years 4 months.

That sounds about right to me.

January 2018 = 74-75 million sold

March 2018 = 80 million shipped

January 2019 = 92-96 million sold

March 2019 = 100 million shipped