That's incredible. I guess people being interested in the IMSAI today is no less remarkable than people like myself having been interested in it in 1975.
I first learned the details of computer architecture just barely prior to the time that microprocessors first appeared. I had a friend who kept telling me about the neat things he was doing with a "microprocessor chip". It wasn't until a year or so later that I realized that the "thing" he was messing with was actually a general purpose computer. The term "microprocessor" was not a generally recognized term at the time.
As soon as I read through Intel's glossy brochure describing the 8080 chip, I was hooked.