I sold my old 2080 at the right time and made $100 but I was out a graphics card for over a year. Sold my steam deck as well and only lost about $75. Due to kids I didnt have time to play it along with the switch and some desktop PC games.

Check eBay prices and local Craigslist/FB market place.

Making $100 and not having a graphics card for over a year does not work out to "sold at the right time" for me somehow.

It’s impossible for me to game on 3 consoles due to time constraints. Juggling 2/3 (switch/deck) and switching 2/3 (switch/PC) a year later is not a big deal.

I had an intel CPU with an integrated GPU at the time and a laptop and servers at home.

Depends a lot on what the backwards-compatibility story for the Switch 2 winds up being...

What model do you have?

The regular Nintendo Switch (non-OLED).

They'll retain value to people wanting a moddable switch.

I think even then it depends on what model/revision but yes, for sure.