IMO the key was drivers:
> While the press criticized some of Windows 2000’s driver support at launch, the OS actually supported far more hardware configurations than Windows NT 4.0.
I ran NT 4 as a desktop and it was quite the chore with a mix of hacks and repurposing other drivers for similar hardware.
This reminds me of the Linux desktop experience now. With comprehensive driver support and an intuitive UX, Linux can be dominant as a desktop alternative to Win/Mac.
The litmus test is if Mom and Dad can manage it themselves, it's attained equal status to the above.