Our servers run CentOS. None of our developers would dream of running that as a desktop OS. Some just use Ubuntu and call that good, but I like to have my testing environment as identical to production as possible, so I took an ancient laptop with a busted display and slapped CentOS on it. As I mentioned in another comment, I set up samba so I can have apache pointing directly to my project folder on my dev machine.

It makes for very convenient testing and it has helped me catch issues others didn't see on their distros, mostly because CentOS has ancient versions of everything and sometimes people don't realize they are relying on a feature that was introduced later.