I place mine against the wall. It is most convenient this way because the Ethernet and power outlets are against the wall. In addition it means that the remainder of the space is large enough to be used for other things. My wife and I sit in the same room with a table with the 3D printer, home servers, and our various shared workbench tasks in between us. I sit by the window because I like sunlight and looking over the city, and while my wife does too my mood is more mercurially related to it than is hers.

Overall, power and data management dominate this entire arrangement. I have far too many devices each of which draw very little power but demand their own massive power connections. In the end, I will likely just rack most of them to make room for the second child we plan to have.