What most everyone here missed, just like Steve Jobs when he say Smalltalk, was the entire network of computers that were released with the Star System they sold a separate network print server, file server, mail server… the were all separate Machines connected over Ethernet. When I started Xerox is ‘82 they had over 5000 computers interconnected across the world (and you could debug any computer on the network remotely and it would pull source code/symbols remotely as well for debugging!)

Apple did not do any of that when they released the Lisa or the Mac. But you also have to remember this was target for large businesses and not for small businesses, like the Lisa, or home users like the Mac.