The changes between Windows 7 and 8 always seemed terribly minor to me -- a few control panels and settings shifted around as they do every OS update, the start menu became larger and looks a bit different but functions essentially the same (right down to preserving your Program Files hierarchy from Win95 if you scroll down from the tiles screen), but nothing major in the big scheme of things.

If Microsoft hadn't made these changes, and in the next few years became completely foreign and irrelevant to the current young generation of consumers who grew up on touch devices that work more like Win8 than Win7, would we be panning them for sticking with "what works" while their consumer base switches to Android/iOS?