For any physical server running Windows 2008, you might as well enable Hyper-V. This way, you can get more use out of that one server by running multiple servers on it, and utilize unused CPU and RAM. So once you enable Hyper-V, how are you going to manage it from your desktop PC? You do not want to have to use Remote Desktop Protocol (RDP) to connect to the server and launch the Hyper-V manager, every time that you want to administer Hyper-V. Thus, you need the Hyper-V tools for remote management up and running whenever you need them.