Self-publishing on Amazon is easy; I did it twice as an
experiment and once you get the proper text conversion tools,
and have already collected it together, reformatting it to fit
the proper form for an electronic book and going through the
steps necessary to get it "out there" in a book form, only took
me 45 minutes on the second try.
There's great satisfaction to seeing it "up there", as for some
people, "I wrote the book on the subject" is enough to soften
their contradictions and, if not gaining a believer, certainly
gaining someone who says, "This guy might be onto something
here. He wrote a book."