It's all those millions of Rage Pro cards out there which could use an upgrade.
Not to mention the Diamond Viper. A buddy of mine bought one a couple of years ago because it was a 32 MB card. The best he can get the SS doing is 30 FPS @ 640x480! ANYTHING taxes this card!!!
Poor guy feels so bad too. My 16 MB Voodoo 3 3500 was out performing his in every test! At about half the price!
And as for the Voodoo 5. You can still find them in clearing houses on the WWW for about $100. A good price still. Considering the card was $500 when it came out.
[By The Way: does anyone know what the add-on is for the Voodoo 5? there is a connector on the card with (about) 20 pins on it. Looks like a ribbon cable could connect to it. The manual said it was for an add-on, but I can find nothing on the internet about this]