I’ve just bought a 9.7 pro with the Logitech backlit keyboard and the pencil. As an upgrade from an Air it is significantly better.
As you’d expect it’s much quicker but comparing the screen to the air or air 2, there’s a very noticeable difference.
Go refurb if you want to save a few bob. I think they start at 480 and would only expect the next gen to be even more expensive due to currency adjustments and a bit of piss taking (like the iPhone)
The value of the pencil is a bit questionable as a non artist but it is useful for work taking notes in Evernote and drawing diagrams.
It gets used for work in the morning/evening and on the train.
I wouldn’t get the big one because I’d find it unwieldy and I have other options if I need a larger screen etc