It was a different time.
I honestly was excited about Windows 95. Win98 was underwhelming, and WinME was a joke that I never bothered to install on my own machines. Win2K brought back some of the excitement, but not much.
Then Vista came out, and it was a total flop at first. Win7 fixed most of those mistakes, but the damage was done. Vista basically killed any chance Microsoft had at building excitement for an OS.
FWIW, I think the last macOS version that I was really looking forward to was High Sierra.