I like to think of it this way: You go to Lowes for a plumbing demonstration and the guy comes out and does the repair and everything looks real easy and simple. So you go and buy all the tools and materials and when you try the repair at home things aren't so simple. There's a wall in your way and you have to contort yourself into some impossible angle, and your fittings are all non standard and the fittings are all corroded or frozen on and a little 10 minute job turns into a 2 hour ordeal and maybe you wind up needing a plumber.

The same with honing. You never know.