Unless you needed large fonts, or high contrast, or screen readers, or resizing windows without tearing, or start menu search, or file explorer search, or taskbar thumbnail previews, or window snapping, or......seriously, the list goes on for a long time.
large fonts and high contrast were available themes, your start menu wasn't that big in those days, file explorer search still doesn't work right, you didn't have so many apps that you needed taskbar thumbnails (You had maaaybe 32 megabytes of ram back then) , monitors weren't big enough to need snapping (seriously, remember trying to use a 14" CRT?). Yeah, technology has advanced significantly since the 90's and we've needed innovations to keep pace, but Windows' UI changes haven't all been good. In Windows 8 Microsoft went for a touch based UI and it just didn't work right.
