/shrug
I like Win8
I bet most people have never used it. It is ridiculously fast.
It takes a while for people to get used to major UI changes. Remember how many users (even power users) were complaining about XP when it was first released? How it was dumbed down, had a Fisher Price look, and was unintuitive?
Granted, some of those users are still probably using the Windows classic theme, but the majority of users were comfortable with XP by the time SP3 rolled out.
I was on Windows 8 beta/release preview/release candidate for a while and stuck with it, learning all the new shortcuts and got used to the second interface. A lot of things are better and faster, and using Windows 8 in a dual or multi-monitor setup is smooth. And managing startup, services, and tasks is easier with the new task manager.
It's easy to dismiss or bail on Windows 8 just looking at it as a new experience or using it only casually for a few days or weeks. But use it as your primary OS - especially when you have it on laptops, desktops, tablets, and similarly styled WP on smartphones - and you can appreciate the convergence of the two UI approaches.
Windows 8 is a transition, without a doubt. It's likely that the next OS will be the one that is more polished and successful. Win 8 is not bad, but as is often the case of going from one version to the next immediate one, most people don't need to upgrade. If you were on Vista (at least after service packs) there wasn't a compelling reason to upgrade to Windows 7. If you were on XP, there wasn't a compelling reason to go to Vista.