The good thing is that for a long time these old cards used far less power than any modern card. And if you needed a GPU just for displaying text and stuff they came in quite handy.
On the other side my Geforce 3 then was hot and hungry so having it replaced with a modern GPU was far better.
But looking at my collection I even see some old ISA cards. Maybe 512 K VRAM. Heh. I wonder if I could get then to run. But then, how to find a working mainboard that still has ISA...