Nintendo leaving Sony at the altar is bar none the worst decision. Sure it gave consumers the PlayStation brand, but it screwed over Nintendo for all-time. The PS1 beat the N64 quite handily in sales, The PS2 is the highest-selling platform of all-time, The PS3 struggled but has managed to stay relevant longer than the Wii, and the PS4 is comfortably in the lead right now. The PSP also managed to be a viable rival in the handheld market, even if it only sold about 55% of the amount the DS sold.
Honorable mentions
Sega releasing the Saturn prematurely in the west
The Wii U's name, tablet controller, and extreme lack of marketing
The Xbox One reveal and Don Mattrick's comments
599 US Dollars and the expensive architecture of the PS3
Atari claiming the Jaguar to be 64-bit when its visuals and games failed to impress. This console ultimately led to their downfall.
Lifetime Sales Predictions
Switch: 161 million (was 73 million, then 96 million, then 113 million, then 125 million, then 144 million, then 151 million, then 156 million)
PS5: 115 million (was 105 million) Xbox Series S/X: 48 million (was 60 million, then 67 million, then 57 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
