Hmmm...
I'm sure that people who are genuinely interested in such a book would actually buy it. Despite that people have gone and made it available via other means.
My uncle has produced his first children's book, he used a printing company to have something like 300 books printed. My uncle paid for those books upfront and since recovered his money by selling almost all the copies.
I would imagine that a small number of books could be printed, though at a slightly higher cost, and still be sold.
I also recently ordered some printed linux material. I know all the information was public knowledge, just bash commands and some other basic information, but I still bought a printed manuals because I wanted real books, and not just some ,.pdf or .txt file.
I doubt that I need this Guru book, but I hope that others can still enjoy a printed copy.
