Ah, now this explains why I've never had any luck tracking down a Zorro based RAM expansion for my A3000. I've desperately wanted to expand the thing beyond it's current setup and despite noticing that a certain person who posts here has a Bhudda, PCI board, graphics and PCI ethernet cards available and great prices, I cannot justify expanding my A3000 unless I can add more memory to it without having to by some expensive CPU card which I don't need.
I never realised Zorro RAM cards were so rare. If Elbox (or anyone else) makes one then I'd be VERY interested... Not $600 interested, but still VERY interested.