I think the N64 was the only 1st day console purchase I've ever made, but I did consider PO'ing the Switch. I'd only really want it for the typical games (Zelda, Mario, DK?) unless of course, this system gets better support. I wouldn't mind seeing a return of some of the 2d games. The most recent system I own is the Wii and I only use that for WiiFlow, mainly the nes/snes games as for some reason, I genuinely enjoy playing/replaying the older games than the newer ones.
I might consider getting one though since BoTW looks pretty damn good especially considering how I disliked TP/SS. The Switch itself looks like it has a lot of potential. Haven't seen what the game line up looks like either but I really hope this system does well.