If I didn't have a Wii U, I would (maybe) want the Switch for Zelda. And if the Switch version of Smash Bros. has new characters, I will (definitely) want that.
However, I'm also pissed off at Nintendo. They are increasingly giant jerks (firing Allison Rapp, sending a C&D to a friggin' romhack), and they have really played their fanbase for money a lot. I'm just waiting for the announcement that the Switch virtual console is also resetting back to 0 and that your Wii U/3DS purchases will not transfer again, just allow you to re-buy games as they come out at a discounted rate. It's just absurd at this point.
I have no use for a portable console at this point in my life. I don't play my 3DS at all, and I don't game at all at work (while waiting at the pharmacy for my deliveries to be ready), and if I'm not at work or on the road driving then I am at home with my PC.
I'm curious about Thursday's event to see just how far Nintendo is gonna go in being utterly ridiculous, but...I'm not expecting to even consider a Switch purchase.