I went to Animation school and learned on Indigo's and O2s for Maya and Softimage... ~1994 -> 1996
Years later when we were collapsing ILM into the new Presidio Campus, the amount of SGI full-rack sized machines being thrown into the trash was insane.
I believe they turned at least one into a keg-erator...
I could have had an opportunity to get one of the cabinets, but I didnt have a place to put it. Wish I had figured out a place to keep one.
The SGI cases were a thing of beauty.