I would disagree. Sounds to me like you currently can't afford a Switch by itself (i.e. without getting rid of the WiiU). In which case, you'd have been better off being patient and saving up for a Switch. By the time you could buy one, they'd get these initial launch issues sorted and there'd be more games to play. As for Zelda, it's exactly the same game on both systems. Both of them run at 30fps and both of them have framerate drops, only difference is that Switch docked version runs at a very small upgrade of 900p (1080p would have been mouch more noticeable).
Also... if you're selling the WiiU now for a Switch, who can say, maybe the same thing will happen later on down the line and people will be selling off their Switches for the next big thing. It's too early to say how well the Switch is doing and whether it'll be a long term success. A lot of gamers and developers are still holding off to see how the end of the first year pans out before making a decision. Not to mention that pricing for Switch (and it's game's/accessories) is a bit dodgy at the moment. Best to wait and see what lasting effect it has.
At least with the WiiU, you could always play virtual console and Wii titles (backwards compatible) if the few titles in launch year weren't enough. Besides Zelda, there's nothing much on Switch till later this year. At all.
These sorts of posts remind me of the GPU section of the forum. Where people are selling their 1080s in order to buy a 1080ti. But each to their own. But I guess you get what you pay for, it's your money after all.