VMS was the superior operating system for an era that was rapidly coming to an end. I managed a VAX cluster for a bit in the mid-80s and VMS was really better t

VMS was the superior operating system for an era that was rapidly coming to an end. I managed a VAX cluster for a bit in the mid-80s and VMS was really better than any of the Unixes for managing a time-shared system with lots of attached terminals. But that sort of system was already heading out the door - we had early Sun workstations already. What replaced it (powerful individual user workstations connected via ethernet) was much better served by a Unix OS than VMS.