Come on guys, it seems pretty obvious that Apple has changed their game regarding to "server".
A Mac "server" is no longer a System Administrator's tool used only by the IT department which should only run on Server-class hardware.
Apple axed the Xserve a long time ago. OS X Server Lion is already more or less "a nice and easy server for the rest of us." OS X Mountain Lion had eliminated Server Admin.app (which wasn't default in Lion either...). The app "Server" in 10.8 doesn't even have a DHCP admin anymore.
OS X Server is cheap, easy and is made for "everyone".
If you really need a heavy-duty server with enterprise level of support, you won't use OS X Server. You cannot use OS X Server in combination with hardware which belongs in a 19" rack.
Apple makes sure that the end-user products they make connect perfectly well to the servers already used by the enterprise. That is a far, far better way for Apple to do their business than to try to be a competitor on the server market.
A shame for Apple ICT enthusiasts, but it seems the reality.
Here, take a
look