Sure, the Windows 9x series (and Me) was targeted to final users/home users, it was far easier to install/setup it was (on same hardware of the time) definitely faster or if you prefer requiring less resources, it was simple, it could run games, etc.
NT on the other hand (remember that plug 'n play was introduced only several years later with Windows 2000) was tough to install/configure, it was less "widely compatible" with different hardware, drivers were made only for much more expensive cards, or motherboards, etc., etc., the storage subsystem was typically SCSI (much more expensive) and thus it was only aimed at the professionals/businesses.
Up to Windows 2000 they were simply two completely separated "channels", business and home, each with the OS with the features that were more suitable for the intended use.
XP broke this separation, by imposing to the pro's unneeded bells and whistles and by imposing to the common users senseless restrictions and or "features" that made (and still make in later NT versions) no sense whatsoever.
jaclaz