The original Nintendo Switch has sold 150 million units, making it the third-best-selling console of all time. Ahead of it are Nintendo DS, at 154 million units, and PlayStation 2, at over 160 million, according to Sony. My assumption had been that the Switch would be able to claim second place from the DS, but that the all-time console crown would probably elude it. Now, I'm not so sure.
All of which is to say, I think the Switch could still stick around for another two years at least, selling 1-2 million consoles per quarter and more around the holidays. This would give it just enough momentum to rack up those 8 million sales and reel in PS2 — which, by the way, itself enjoyed a very long sales tail after the PS3 was released at a then-eye-watering $499.

Has Nintendo just set up the original Switch to be the best-selling console of all time?
Watch out, PS2

Yeah, I think the Switch 2 pricing and the economy basically ensures the Switch 1 is going to sell a bunch over the next few years, until cheaper models of the Switch 2 are possible as new low cost entry points into the Nintendo ecosystem. That basically ensures that it sells far more than the 8 million shortfall.