I believe the MS is getting a unusually bad rap here on this one.....
I mean...Ok I get it. Its not normal. And I think MS should open up Visual Studio express to all, and not force everyone who can't afford to pay for the software, go metro only. But I've been using the release preview for a while now, and once you figure out that the Metro UI is nothing more than a replacement for the Start button and bar, its pretty decent.
Of course, I'm no power user. I don't go digging into the internals of the OS to find every tweak and hack. But I'm more than a casual user though, as I like to tweak and hack here and there. So far what I couldn't figure out on my own has been found on the internet. Not having a start button is not the "end et all people.
And take this from an Amiga user from back in the day that's still using Amiga OS in multiple forms(WinUAE w/Amikit, Icaros Desktop, and Amithlon). I think, at least, this current release of Windows 8(Preview release), excites me as much as the Amiga days of OS3.1, which were very awesome, as many of you will fondly remember. I think MS went in the right direction with the OS, giving it a totally fresh new look.
A word of warning to Microsoft though. I'm still able to go back to those Amiga OS variants I love as of right now because you're not requiring me to decide whether or not I have to go with Windows 8 or stick with old hardware right now(The BIOS lock issue, or whatever its called.). You would do well to keep it that way. People don't like to be told what they have to choose, when its their money buying the product. To make people do so would indeed be catastrophic for the PC industry.