Seems we are from different schools of thought
My group plays with a lot of supplements involved, and having more than 1 PDF to scroll back and forth during session is not convenient. Using hardcovers is much better, but there comes the issue of owning all or carrying them around.
The main reason to buy Realm Works back then was the Mechanical section. Second was the possibility at late stage to put
everything inside and no longer use PDF or books.
And it happened. It does an
EXTRAORDINARY job of improving the preparation and running of a game session. It is the best digital tool in the world for aggregating information in a way that allows you to reach all you need in 1-2 clicks. No PDF will ever give this flexibility. even with proper bookmarking, as I have extracted the rules and the most important things out of the paragraphs.