If you don't want to use "touch" on Windows 8, use your mouse. It works just as well. (Sometimes better.)
Further, just because metro interface is there doesn't mean you have to use it. I login in the mornings and spend my entire workday on the desktop. When I go home, I use "Metro" for non-work related stuff.
Windows 8 gives you the best of both worlds and you use the tools you want.
I agree that metro icons are too big on a 24"+ 1920x1080 screen but on a 11" to 14" notebook / tablet screen, it is perfect.
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