It kind of had its heyday in the awkward era where PCs were _just_ powerful enough to finally run Unix decently but before Linux was considered mainstream or mature enough. And that was a very short period, maybe 92-95 or so?

Its predecessor, Xenix, may have had more brand awareness?

I remember a summer job I had, 1998. Contracting doing basic sysadmin stuff for a subsidiary of IBM. I wanted to install Linux on a PC to do some stuff, mostly account password stress testing, etc. Got sign off from most of the team, but one guy dug his foot in... "we should use a real Unix. This Linux thing could get us in trouble. We should be using SCO" He got some funny looks. The next year all of IBM was all-in on Linux, big corporate strategy.