Original Switch had 32GB of internal storage, which was inadequate even then. This time, they’re putting in 256GB which is…fine. It will really depend on the game. The Xbox Series S came with 256GB and I ended up buying an expansion card within a year.I want to see how Cyberpunk and Street Fighter VI run it. Yes, I already have both games and all DLC on the PS5. But just the idea of portability is very interesting and I want to see how they compare. Plus the GameCube app should be interesting.
I just hope it has enough storage so I can at least put off getting the SD chip for a month or so.
I found a list of game sizes, and you should be able to get 2-3 “big titles” with several smaller/Switch 1 games installed without big issue.

Nintendo Switch 2 Launch Games and Download Sizes So Far | Nintendo Insider
With the console to come with 256GB internal storage, it's important to know download sizes for Nintendo Switch 2 games in case you need to consider expanding

SF6 is 49GB, Cyberpunk is right at 60GB. That said, Nintendo’s offerings are hovering between 15-25. Donkey Kong is svelte 10GB. But I guarantee anything from Microsoft or the big sports games is going to push 90-100GB, even on Switch.
Yeah, and in a lot of cases, you can get the same games CHEAPER with BETTER performance by waiting for a sale on another device. I have a PS5 and a laptop with a mobile 4070 8GB. If I really wanted to play Cyberpunk, I could do so NOW and get better performance than what the Switch will be apt to provide,I'll wait until there are more games. Ports of stuff I can already run on other consoles don't count. If I wanted to play those, I already have options.
Hell, at this point, even a new main series Pokemon might wait to see if they've actually let it cook long enough this time.
My position is this:Well, the biggest reason I wanted one day one is because I don't want to deal with tariffs in the future. Like, even if it means interest on monthly payments, better the devil you know.
I KNOW I’m going to end up with a Switch 2 at some point. I’ve invested so much time and resources into the current platform that it just makes sense and the improvements to games I love already is a boon. IF I see a MK bundle for sale (for retail), I’ll probably get it. But I’m NOT going to go hunting or hawking online retailers over this, either.
My big game this year is Metroid Prime 4. It’s going to be on Switch 1, and it will look fine. I can survive a few more months of not playing Mario Kart Horizon. As is, I didn’t even get the first Switch until Super Mario Odyssey came out (Fantastic choice on my part, btw)