You can always buy the Switch later when its more available and cheaper, and it will also have more games and their online service is fully explained. That is of course if your in a situation where you can afford multiple consoles down the road. Since you have multiple consoles now, that shouldn't be a problem I'm guessing.
Waiting a while to see how Switch unfolds is just a smart idea all around. Pro looks to be moving along nicely and you can count on huge support for it over the next year and going forward with Scorpio on its way.