When you only have a few computers to manage, have fun with names. But when you start to have hundreds (or thousands) of computers, you really need a naming convention. At that point, you're dealing with multiple environments, locations and business units. Being able to glean that information from a name is very helpful.

Also, at that scale, names are never permanent. You're renaming (or rebuilding) hosts as they change location and usage.

The worst is when you scale up from a small firm where all the hosts are named after movie characters and all services are hard coded to those names. Been there, its rough....