I was extremely impressed with the power of vi from the first half hour that I used it. I then found out that in some work environments, there are many people (technicians, and even system administrators!) who avoid it as "too complicated" without ever having run the vimtutor, and still other people who use vi only in insert mode and miss the whole point of modal editing.
How can I demonstrate the power of vi/Vim to others in such a way as to inspire them to learn it and use it?
I am especially interested in any actual histories of what has been successful in getting others (or yourself) to learn and use Vim.