(BTW, for future reference, Start Screen != All Apps. If you're going to compare the two, then you should be comparing Start to the little space you have to pins apps to, and not the All Programs menu. If you like folders, then app grouping should be up your alley. I'm not sure why you still prefer to run around in the all apps menu, but with Start being fullscreen, you have more room to pin and organize your stuff, which should eliminate the need to ever visit the all apps section. Even on Windows 7, All Programs is no saint - it's cramped, cluttered, and featureless.)
I have literally just started on Windows 7 today (coming from XP in a corporate environment). I love the new quirks and everything else. However, what I am quoting is an individual idea. It's that simple. For some people it works, for others I can only imagine the hell I'm going to have to deal with.
Is the end user wrong by pointing out that their system no longer works the way they are used to? No. Am I supposed to turn around to those end users and say, "too bad, this is the future"? I will no longer have a job if I say that.
I appreciate progression. My major point is that - being the inbetweener - people do not want this jarring change. And that is what Windows 8 is. It's a complete change for many end users, and it is me that ends up trying to help them to do a day-to-day task.