For the most part, I agree - I'm using Windows 8 on my personal computer, and at this point I have absolutely no desire to go back to 7. But I'm a computer guy

For the most part, I agree - I'm using Windows 8 on my personal computer, and at this point I have absolutely no desire to go back to 7. But I'm a computer guy. So despite my initial frustration at having to go through yet another round of Redmond Musical Chairs, it didn't really take me very long at all to get back up to speed with the new UI changes. That said, I do think that is a serious issue for businesses. Half the folks I work with still aren't up to speed on Windows 7, and it has a much more discoverable UI than 8 does. Not only is 8 an even bigger widget mover than XP was, but having everything hidden offscreen so you need to be able to independently think to hover the mouse against an edge of the screen to find what you're looking for is going to be an absolute discoverability killer for these users. No, I don't know why it is that so many people have a hard time learning new UI. But they do, and it's a reality that can't be dispelled with dismissive remarks.