I came to post the same thing... I had NeXT cube serial number 32 on my desk at Los Alamos as an intern back in '88 running NextStep 0.8 and clearly remember how amazing the machine was. We got the first 50 of the line (I think) because a guy in the Laboratory was a friend of Jobs, and Jobs wanted to promote the box as the perfect research tool thanks to Mathematica and the like.
Those were fun times!