Cray fans know that if it doesn't have padded seating all around, it's not a supercomputer.
Top end POWER servers like this tend to come in customised racks, and while they don't have windows, a filled-in system will have a lot of status leds visible. The racks themselves are also quite stylish, not just simple box, at least in my memories from dealing with p590 and seeing many other models later on.
Isn't there a story about how a supercomputer used a macbook just to display a nice the logo on the door - and for nothig else?
as I recall a reporter quipped to Seymour Cray that Apple uses a cray to help design the mac to which Dr Cray replied he uses a mac to design his supercomputers