This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
You don't need a server GUI or a graceful shutdown, but many people on this forum (including me) have implemented them. I think it's a good idea to give clients a chance to finish with their existing database locks before the server stops.