Sure, and I do that when I can (e.g. not when I'm writing SQL), but the point of my quick examples isn't to show off my software engineering, but to illustrate what vim can do in the simplest way I can think of.

I guess I'm failing to make the point, so I'll just refer to the articles that got me to try it in the first place.

http://www.viemu.com/a-why-vi-vim.html

http://www.moolenaar.net/habits.html