“Beautiful Aero Glass effects”? Who says its beautiful? Personally I can't stand it.
But then that's just a matter of personal preference. I tend to be a minimalist… just like some people are by nature conservative and others liberal. You might as well argue that a Gothic revival building is more beautiful than a Frank Lloyd Wright building;
or vice versa; or Picasso vs. the Pre-Raphaelites.
I went from what was to my mind the clean look of Windows 2000 to the hideous Play-School Luna theme of XP, and replaced it with Classic immediately, and have continued to do so ever since. Clean, lean and mean… that's how
I like it. I don't even have a picture as a desktop background, just plain MS blue across three screens. It's far less distracting. Even on my Linux computer I tend to go for Xfce or LXDE rather than some of the other other eye-candy offers, and both
my Windows and Linux computers have enough grunt to run plenty of eye-candy.
Most of the discussion here seems to be about the hated Windows 8, and I didn't like the new Start screen either; so I brought back the Start button (there were plenty of third party apps) and banished the Start screen forever. The Windows Classic theme
hasn't been available in Win8 or Win10, but with Win10, it's so close that I really don't care.
However I do agree that if you actually like Aero Glass, and your computer can cope with it's demands, and if you can put up with the schizophrenia of not having it on other Windows devices with lesser resources, then that should be your choice
and it should be available.