I already have a Supernote A6X that I use as my journal and sketchbook, but I wanted something larger for use at work to sketch out flow diagrams and have the larger canvas for reference docs.
I also wanted to see how Boox's options for pens and pencils worked for drawing. I've started doing some of those tests now, which I'll be posting about soon.
Having a more tablet-esque enote device at the larger 10" screen size seemed like a better fit for news reading, so the Boox was the option that fit best.