I really wanted to like the Switch, but the addition of and focus on motion controls during their January press conference really killed it for me. Alternate input methods for games have failed, but Nintendo keeps pursuing this. My worry about the fact that the console supports motion controls is that games will use them. Motion controls killed the Mario Galaxy series for me, I couldn't get past the first hour or so without having so many frustrating input problems. I have a Wii U and Nintendo's games insist on using the microphone for stupid gameplay mechanics, like blowing on it to move platforms.
Nintendo makes really good games, but they're tied to crap hardware and forced to use really awful input gimmicks. This feels crummy to say, but I kind of hope the Switch fails so that they're forced to go third party, drop their crap hardware division, and put out their excellent software on game consoles I actually want to own and use.