StarDoor on 04 January 2018
Well, now that we know December's data, this prediction strays even further from reality.
3DS Japan, end of 2011: 4.3M
3DS USA, end of 2011: 4.1M (-0.2M, -4.3%)
Switch Japan, end of 2017: 3.2M
Switch USA, end of 2017: 4.8M (+1.6M, +50.0%)