For people of a certain age, 3dfx is iconic. As a teenager, you read a bunch of reviews about how great it was. This was before widespread broadband and there wasn't much PC gaming content on TV, so you didn't really know what it looked like. After months/years of saving you finally bought one, put it in your PC, started up Quake 2, and it was f**ing amazing.
GeForce came along soon enough and made it obsolete, but never had the same mystique.