I bought back in May a HP Desktop Bundle from Sam's Club, 27 inch HD Monitor, 12GB of RAM, 2TB Hard Drive, etc... for $888, and while I usually custom order my machines & was planning on having Windows 7 installed at the factory, this was just too good a deal to pass up. It came with Windows 8 and once I got used to the way it worked it isn't all bad. I installed the 8.1 update and everything is running just as snappy as before.
One of the really neat things about Windows 8 is once you learn how to use it, it applies to the Surface family of tablets, and the Windows Phone devices. I have a Surface RT and could not be happier with it, and the HTC Windows Phone 8X, so everything just goes together naturally.
Windows 8 is very much a radical change from previous versions of Windows, but once you get the hang of it, it's not that bad at all. One of the best things about the 8.1 upgrade is that I now have a really good, fully functional Metro-style Mail App, and Outlook 2013 on my Surface. On the desktop I am using Office Professional 2010.