The case for not upgrading your Linux box

There are plenty of valid reasons not to upgrade to the latest release of your Linux distribution. You have to reapply all manner of preferences, hunt around in the new Applications menus to find where your programs have moved to and what they're called this time around, get used to new ways of doing the simplest tasks, and there's usually a new firewall subsystem to boot. But the one that has always gotten under my skin is the fact that upgrading my distro always breaks the add-on software I've installed myself.