For all those who have dropped $3000 or more on a single 3D card please raise your hand ....
Umm.. well Patrick, Hugo and I had a little company called Creative Realities which (after moving on from Laser Tag) designed a full motion simulator. This was a while before high performance PC graphics chipsets were available, so we made the highly dubious decision of blowing 25 grand on a massively parallel 3D graphics engine consisting of two huge MCA cards. The cards had sixteen "processor SIMMS" each containing eight chips with 64 4-bit processors on each chip - giving a total of 8192 processors. The scene was split up between the processors.
At the time the system was phenominal, but unfortunately you could get pretty similar results out of a $200 consumer product before our project was finished. Actually, the last I heard that project still isn't finished
Rob