I guess ultimately it depends on what kind of games your family likes

As you mention, party games you only need one. If your family’s into single player or portables then each person needs one

How is it affordable? Well, it isn’t really. Although I guess a switch probably retails for about half the cost of a PS5

It’s funny though, if you compare it to other consoles, I think people are far less likely to buy an Xbox or Playstation for each family member. And yet, people would do that for the gameboy and DS without batting an eye. The switch is trying to be everything, for better or worse.

When we got ours, we were pretty content having just one and then playing party games or taking turns on single player games. Sooner or later though, we had to get another so we could play pokemon together. Which is a shame because my interest in pokemon seems to have suddenly fallen off a cliff and now my switch is collecting dust

So I guess all that to say: your mileage may vary