Actually, I built an IMSAI 8080 from a kit for my local BYTE Shop in California.
Has a sexy look with the red LEDs, dark plexiglass front and multi-colo(u)r switches, and wickedly dangerous with sharp sheet metal edges and points, with exposed voltages.
Darn. Wanted to post a image. See it at the IMSAI 8080 site: http://www.imsai.net/
??? How do you post/paste in an image to the forum message? ???
I clicked the image icon and got the / commands, can't get the image into the message.
As for my using the ZX 81 or Spectrum, very true. Those were not over here in California.
The very best keyboard for feel was on a friend's Processor Tech SOL-20, a SF Bay Area company.
At college, we used VT52s and later VT100s at consulting for client projects .