When MS offered us all the special deals on the various upgrades, Windows 2000 was one of the qualifying operating systems.
It was clearly stated on various MS websites.
Now MS has changed its mind and now is disallowing Win 2000. Windows 7 - Buy and download from Microsoft Store
Most people could not care less but it does show MS's state of mind
if nothing else.
I hope we users that have ordered upgrade media are not in for too much
of a problem when we actually get the discs and see just what is involved with installation and re installation.