If they enabled animal crossing online multiplayer to allow everyone to build the same town (if they choose), then I'd buy a lite for sure to give to my wife or for me to play so we can do animal crossing together without worrying about one camera angle. But since it appears only local multiplayer allows for people to live in the same town, then I have considerably less of a reason to buy a lite since I can already carry my normal switch in most of my pockets and/or a carrying case that is incredibly small. I also have zero interest in trading to a lite because I want to be able to dock this switch of mine.
That being said, Lite will be priced at ($200) close to what the 3ds was after it's price cut ($250 before and 170 after). Adjusting for inflation $170 from 2011 would be $194.86 today, so they are essentially targeting the same SUCCESSFUL price point of the 3ds after it's price cut. And keep in mind, the 3ds was bombing before that, and the Switch is exploding before that, so I think the numbers we see from this move will make the 3ds 2011 August price cut success look like a joke.