Thomas Shey
Legend
I also find PDFs and digital books difficult to use at the table, since it takes much longer to look things up in them. YMMV, of course.
It works both ways with PDFs in my experience; for core books I tend to like to have a physical book if I'm GMing because I quickly develop a sense of where important parts are in the book.
That said, for other material, the ability to do a text search in a PDF outweighs any of that benefit, let alone having to sort through a bunch of physical books.