Too much typing, and Chromium-based browsers don't understand it yet and try to search for mything.internal instead, which is annoying - you have to type out the whole http://mything.internal.
This can be addressed by hijacking an existing TLD for private use, e.g. mything.bb :^)
eh, you can just add search domain via dhcp or static configuration and just type out http://mything/ no need to enter whole domain unless you need todo ssl