my 2C: I don't own a switch but have played roughly 20 hours of Zelda, Mario Kart and Bomberman. At the moment, I don't think its worth it at all. Zelda is good - very good, but it'll still be there in a year or so when Nintendo decide to make more games for the console. Mario Kart is fun, but i'm not paying 45 quid for a port. Bomberman is boring.
That said, I like the console, and the portability aspect of it is fantastic. had a lot of fun playing Mario Kart with friends too, But I want to see what Nintendo have lined up for the future before I spunk a tonne of money on the console.