Playing the devil's advocate here:

Black on black is pretty funky, but it might make sense to have LED lights. When you plug stuff into its expansion ports, chances are you're gonna move the machine slightly, so it lights up automagically which lets you see where things are.

You may also put this inside a cabinet or under the desk maybe (I'd put it on a mantlepiece) where light isn't abundant. Shake it, ah, there it is. No hard drive so you can shake your heart out!