I'm kinda "meh" on the subject personally. I do own a Switch Lite and I love playing on it, given I have some gaming depending on my mood. Yet I don't game enough to say also I would "need" to get the S2 right off the bat. I waited a while before getting a Switch in the first place, mostly to let the price drop and also for more used games to come out into the market. Which paid off for me in the long run. My other thing is well: price. Given what @Envy said: (not so much the MK)
And I also have a backlog of games on PS3 and 3DS, and if I DO get a new system, I'll look at getting a PS4 for my next gaming system.