I don't have a switch and as of right now I have no plans to buy one. I tend to buy consoles late in their lives for some reason. I didn't get a 3DS until 2-3 years ago so it's still fresh to me. Plus, I don't like that you have to pay for online play with the switch. I wouldn't use it enough to make it worth the fee, but I'd feel like I was missing out on the rare occasions when I would want it.
If New Horizons ends up being amazing and I decide I'd rather play it than New Leaf at some point, then I might break down and buy a switch, but for now I've still got ideas for new towns in New Leaf that I don't think would translate to the islandy nature of New Horizons.