PS4 Hardware Sales 2015 vs 2016 vs 2017: New Years numbers posted. 2017 ends at 20.2 million

[StarDoor]

AngryLittleAlchemist said:
I still don't think anything it will hit above 113 mil.

But then again, didn't Sony sell millions of PS1's and PS2's after they were already replaced? Or am I wrong about that?

PS1 sold over 30 million after PS2 was released, and PS2 sold over 40 million after PS3 was released. Curiously, though, PS3 won't even reach 10 million after PS4 was released.