Will I buy Switch 2 on day 1? Very unlikely.
Will I buy Switch 2 ever? Maybe, but it also won't take much to turn that "maybe" into a "yes". Backwards compatibility helps a lot.
The only systems I've ever bought on day 1 are the SNES and Switch. I bought the SNES, because Nintendo Power said it would have the next Zelda on it (i.e. Link to the Past). I bought the Switch for Breath of the Wild. Basically for me to buy any system on day 1, it better have a Zelda game that I really want on it, and my standards are really high for Zelda games. I still haven't played TotK nor do I plan to.
I need to see what kind of software Switch 2 will have before I know if I will ever buy it, but chances are high that it will eventually have enough games that I want. I've owned every Nintendo handheld since the GBA, since they eventually all get a very good library of games. Mario Kart 9 is not enough for me on its own though.
curl-6 bet me that PS5 + X|S sales would reach 56m before year end 2023 and he was right.
My Bet With curl-6
My Threads:
Master Thread, Game of the Year/Decade
Switch Will Be #1 All Time
Zelda Will Outsell Mario (Achieved)
How Much Will MH Rise sell?
My Bet With Metallox