I'm not really stressed about silence. That's what speakers are for!
I mean, I got fairly quiet fans and everything, but I want a case that looks good. And the P180 looks good, but I cant show-off my insides. If it's really that important, why dont they make a window of double glazed glass. I live near a freight train line, and if the doors and windows on that side of the house are closed, you cant hear the train - so I know for a fact that double glazed glass or whatever they call it works.
Also, The P160 came with a side window, so it makes sense that it's successor would atleast come with the option of a window.
RoD