Well lets recap the Windows Series and you will see why.
It seems in the history of Windows, you need to skip the next release.
-1 Windows 2.0 - A Waste of Money (I infact bought it!)
+1 Windows 3.1 - It well worked, and was useful
-1 Windows '95 - Fancy DOS, nothing more then a pile of floppys
+1 Windows 'NT - Devil to install, but what '95 should had been
-1 Windows '98 - Fancy but buggy as hell, outdated drivers, etc.
+1 Windows '2000 - Full support, companies move forward or use '98SE
-1 Windows 'ME - Opps, kiss your personal data goodbye!
+1 Windows 'XP - Yippie, the next-generation is born
-1 Windows 'Vista - Opps, back to pile of hard drive space.
+1 Windows '7 - Devil to upgrade, but what 'Vista should had been
-1 Windows '8 - Opps, does anyone remember 'Microsoft Bob'????