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."

  and... that's pretty powerful to have.