The first thing I did on Win 8 to make it useable was install one of the 3rd party start menus (Classic Explorer) and then move the desktop card to the top left hand corner of the sodomizing (q.v. above) and irrelevant (for non-touchscreen devices) Metro. Then you get something like the Windows 7 desktop back on boot and will never have to look at Metro again, unless it's on a tablet.
What an idiotic business decision it was to try to fuse these two very different use cases, shove it down the consumer's throat with a rolled up newspaper, and then totally omit the option to have a traditional start menu. Seniors will not cope but who cares about them, eh? MS are banking on kids just taking to Metro and then never learning what a start menu is.
Also strange that MS are duplicating the mistakes of numerous smaller companies who have worked hard to build something rather like Metro and then dismally failed in the marketplace. Stop force-feeding consumers what you think they have to have! I am dumbfounded at the stupidity of that decision.
I think the desktop metaphor is as optimum as it gets for usability on traditional boxes/laptops. Apple know that; they have had the brains to keep the desktop on OS X. MS doesn't know it or chooses not to. There is simply nothing better around for a non-touchscreen device with a keyboard. If there is, where is it? 'Coz it ain't Metro. It's all just about trying to move to the iOS walled garden model and shut down our choices and freedom as usual.