I am actually in the same boat. Brought one for myself way back in like 2016. Proceeded to have a kid and that kid is now 6 and just got him one so we can both play. I guess it's not technically mine but 2 were definitely needed.

Not OP, but I have two because there was too much contention on a single household switch. My household collectively also owns/owned 2xWii and 1xWiiU.

OLED is pretty significant feeling because of the bigger screen.

Though now neither get used because I have a steam deck.

I bought two switches. I had an original second Gen one. I got it for Christmas as a present from hubs (technically). When the splatoon OLED came out I really wanted the better kickstand and I really liked the styling and bigger screen. I saw one in a store by happenstance and picked it up. I ended up giving my first one away to one of my friends who doesn't have much money but wanted to play the new Zelda game. Something similar happened with my hubby. He found a Zelda ToTK switch somewhere, bought it and gave his old switch to his younger brother. Technically I also bought a switch for my mom so she could play animal crossing. So together my family has in fact bought at varying times a total of 5 switch consoles. That's not including my son who has one (we didn't buy it, his grandparents did). We share a Nintendo Switch online family account.