Well, I certainly don't live and breath based on OS window styles, just not that big of a deal in my book, and I don't even know where the term "brushed metal" came from in the first place. As a former OS 9 user, I always thought of it more as "textured platinum."
But I do kind of like the sort of lightly embossed feel that fonts sometimes have against "brushed metal," almost like they were engraved on the window, and that's seems to be missing now with new brushless windows. Back to the old, dull, regular, one dimensional appearance.
But at least the basic gray shade works for me, much more so than the puke-inducing color schemes in Windows XP. Gray is basically a neutral color, and when the window contents are just black text on white background, it's not that important, but when the window contents are media (pictures, movies, and so on) where millions of colors are potentially at work, then a non-distracting, color-neutral window is what you want. That's when the hard greens, browns, blues, and God-knows-what colors that make up XP windows get distracting, if not nauseating. Give me brushed metal any day.