As an aside, buying a print reference book frequently feels counterproductive. Even if I'm going to get a formal reference text, instead of online resources, I

As an aside, buying a print reference book frequently feels counterproductive. Even if I'm going to get a formal reference text, instead of online resources, I probably want a digital copy. Otherwise, I find myself going "I wish I could do text search for this thing..." and wondering why I didn't get the version that actually allows that. When I read for pleasure I enjoy the physicality of books; when I read for technical reference I demand the interface of a computer.