Well, in building my box (albeit before Voodoo5 release) I tested several. Played with an ATI Rage Maxx, a Geforce256, a Voodoo 3000, and a Stealth III.
Stealth III didn't have the speed, and the ATI and Geforce cards were around 300 bucks. The Voodoo matched the speed of the ATI and Geforce cards to the naked eye, and was around 150 bucks. That was my deciding factor, price being an issue for me.
Yes, it has a rough line here and there, but thinking about it, I couldn't make myself say I would notice a rough line when being shot at by other folks
. Add that to a desire for Linux support, and that's why I went with 3dfx.
Xayd