I haven't had a physical book for leisure reading in a while but I totally agree that physical books for reference is a definite must have. it is so much easier to just flip to the page I need instead of navigating menus to find the table of contents in a reader app.
Discussion
They both come with their trade offs for sure, E-readers imo are just a hassle navigating through different pages but idk anything that beats being able to physically turn through pages