I've noticed the higher end Voodoo's are getting more expensive. Same for Voodoo 3 PCI, prices are going up towards ridiculous levels. Voodoo 3 AGP can still be found for cheap now and again. These cards aren't rare, but it seems theres always many people bidding, driving prices up.
It seems Voodoo's are liked amongst retrogamers. And the same goes for me, I've always had a soft spot for the Voodoo's.
Apart from Glide, they have a few other benefits compared to many other cards:
*They just work, no weird corruptions or other driver issues or bugs (unlike many of their contemporary competitors).
*Because of their "flaw" of practically being PCI cards electronically wired as an AGP slot, they have less issues on older more buggy AGP boards.
*Compared to other contemporary graphics cards, they have much better driver support, because people seem to keep making new drivers for them, unlike many of the more obscure graphics cards.
And also most of them don't need active cooling (unlike the early GF's).
And about K6, I suppose they have MANY downsides compared to Slot 1, but once running, for me they seem about as fast as a P2 or a Celeron of equal speed.
Another thing is, at least here in The Netherlands, it seems SS7 AT boards are way more common then Slot 1 or s370 AT boards.
SS7 is also more flexible, there are as many as 5 different manufacturers for Socket 7, each one having at least 2 different chips. Theres just so much choice!