Physical's much better for single-player games if your family has more than one Switch, due to how Nintendo's family sharing for digital games works, which is that the account that buys the game can play it on any Switch, but others can only play it on that account's designated primary switch. And, I can't recall for sure, but I think you may only be able to play one game connected to that account anywhere at a given time.
For multi-device multiplayer, you need multiple copies anyway, so might as well go digital.
Admittedly, this may be a niche concern, but OTOH I don't think Nintendo wants it to be a niche concern, since they're pushing the Switch as both a TV-connected console and a Gameboy replacement.
There's also the matter that you can recover a fair bit of the value of a cartridge by selling it, while you can't do that with digital games, and you can buy physical copies used. Between those, digital is effectively quite a bit more expensive, since they sell them at the same price as physical.
We have one "legal" switch, then other .. less than stock switches. We buy the games on the legal one. What happens after that is between me and my other switches.
For multi-device multiplayer, you need multiple copies anyway, so might as well go digital.
Admittedly, this may be a niche concern, but OTOH I don't think Nintendo wants it to be a niche concern, since they're pushing the Switch as both a TV-connected console and a Gameboy replacement.
There's also the matter that you can recover a fair bit of the value of a cartridge by selling it, while you can't do that with digital games, and you can buy physical copies used. Between those, digital is effectively quite a bit more expensive, since they sell them at the same price as physical.