I've only recently come around to thinking it will hit 110 million. There's a lot of reasons that it could not hit more than that. Lack of price cuts, lack of new software from Nintendo, production delays/complications, or somehow overall decrease in consumer interest. The lack of price cuts hasn't been a problem on Switch yet. But if we're going into 2022 or 2023 with Switch still at $300 and Switch Lite at $200, I think there will be a problem.
Lifetime Sales Predictions
Switch: 151 million (was 73, then 96, then 113 million, then 125 million, then 144 million)
PS5: 115 million (was 105 million) Xbox Series S/X: 57 million (was 60 million, then 67 million)
PS4: 120 mil (was 100 then 130 million, then 122 million) Xbox One: 51 mil (was 50 then 55 mil)
3DS: 75.5 mil (was 73, then 77 million)
"Let go your earthly tether, enter the void, empty and become wind." - Guru Laghima