Im still a little bit on the fence about this. I dont like the touch-screen feel of windows 8, but I do agree that a single OS for all devices is a good thing. Its hard because the current trend is heading towards mobile devices, and the market for desktop PC's is falling rapidly. Its a "damned if you do/dont" situation.
My personal feelings are that I missed the boat when it comes to facebook/twitter/etc.. I dont understand why they are so popular, yet they are, hugely, and the same goes for Win8. I dont "get it". But i didnt with facebook either, so that would mean that its "me" that doesnt get it, and not that its a "fail idea". As a .net software developer I'm forced to work with growing trends whether I like/understand them or not, so Im going in with an open mind and giving it a fair chance. I certainly like the minimalistic feel of windows 8. You get the feeling that a lot of the bloat has been removed and replaced with simpler, optimized alternatives.
I will most likely purchase a legit copy and download a bootloader, because Microsoft's limit of 25 "online validations" is annoying after a few months. I re-install more than i change my socks tbh. Still, I shall support the Microsoft boat by purchasing a copy.