Maximum PC: "Last we heard, Microsoft had sold 4 million Windows 8 upgrades in the first three days of availability. A month on, the Redmond-based tech giant claims to have sold as many as 40 million Windows 8 licenses. Further, Windows 8 is said to be outpacing its predecessor in terms of upgrades."
A friend of mine who couldn't care any less about the details (fanboy for companies) went back to Win7 64 bit, cause he didn't like Metro. I didn't know much about the OS at the time, So I couldn't tell him that he could install the classic shell, or so I have read somewhere on the internet.