There is no advantage Windows 8 would give that would be considered a "must have" for most people, we've established that. I posted some Windows 8 advantages I can think of and simply used one of them, the two or three second boot speed advantage to illustrate that point. I also have an SSD, it's not a big deal, but it is a an advantage of a few seconds. Given an equal choice, what reason is there to give it up.
Identical installs of Win7 & Win8 on different partitions of THE SAME SSD give Win8 a slight boot advantage, nothing big, but slight.
Look at this Windows 8 file copy progress window, petteyg359:
View attachment 125863
Should we give up Windows 7 over that? No, but it sure is nice to have, given an equal choice, where no money or time is spent to install Windows 8, if you have a choice.
As for your last, point, I am with you 100%. Examples are numerous of how a newer model of various things is not better. Sometimes they are, sometimes they are not.
I would like to see why Windows 8 is a step back. You shouldn't go out and get it to upgrade Windows 7, but the point I am making is that Windows 8 IS WINDOWS 7.
I found issues associated with Windows 8 to be user specific, I could not test anything on Windows 7 that couldn't run on Windows 8. Therefore, given an equal choice, Windows 8 + Classic Shell has no downsides:
http://sourceforge.net/projects/classicshell/files/