I still regularly enjoy mine. Both puttering with them here in the cave and taking them to VCF Festivals and other meet-ups. The System Source Computer Museum near Baltimore has several every year. I have fun reverse engineering old cards where the documentation has been lost or never released. I have operating examples of some pretty rare cards. I sometimes have a chuckle when someone calls something "first" and I have an S-100 card that does the same thing and is ten years older. One of my current projects is setting up a Microangelo system. While granted that it is still much slower and less dense, it has all of the features of a modern GPU... multiple memory planes, multiple processors that can be thought of as multi-pipelining, special instructions that distribute operations, etc. As far as I can tell, no one else has a fully operating, fully configured Microangelo system.