The ATI Mach 8/32 (8514/Ultra, Graphics Ultra, etc) was the card I always wanted but never got, because I was under the impression that having hardware compatibility with the IBM 8514/A would somehow be useful. (In the sense it would let me pretend my rotgut 486 was more like a "real" PS/2.) If someone made a modern version of it that magically massaged the awful 8514/A's interlaced 1024x768 output into a clean digital output it might be useful today, especially given that many modern LCDs don't support interlaced modes, but... eh. I don't think I'm the target market for this question.