Only one disadvantage Bert that I can see.
With the case wide open to the elements, what do you do when you spill coffee DIRECTLY ONTO THE CPU/MOTHER BOARD?
The advantage though of dumping your coffee INTO the server, I suppose by short circuiting all of those annoying switches, transistors, chips, and processors, the electrical conduit can simply go every all at once......making for a much faster computer? Am I right on this one?