The DS was cheap (the Lite was at any rate), had GBA compatibility, highly portable, and had unique software that was lightning in a bottle.
The Switch could very well sell more than the Wii. If it's really lucky, it will outsell the combined sales of the GB and GBC. But it's not touching the DS (pun intended). I don't see any hardware ever coming close to the DS and PS2, though PS4 has a good chance of being the 3rd-best selling video game platform.
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: 122 million (was 105 million, then 115 million) Xbox Series X/S: 38 million (was 60 million, then 67 million, then 57 million. then 48 million. then 40 million)
Switch 2: 120 million (was 116 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
