When you only manage one computer, you can waste time on these things and play around with your Gentoo, Slackware, Arch Linux, and other crap.

When you manage more than 500 servers and thousands of computers, you can't.

Why waste time on things that have already been solved? It's like trying to make your own car wheels by melting aluminum.

I had to learn this philosophy the hard way: simplify, try to be productive, and don't waste time on trivialities.