Yeah, I know, but given that you leave the user not-logged in and set the items system-wide startup items, the memory pressure on a 64GB system can be seen as n

Yeah, I know, but given that you leave the user not-logged in and set the items system-wide startup items, the memory pressure on a 64GB system can be seen as negligible with some mental flexibility. I think the primary use for a rackable server like this is automating building and testing of macOS native, or macOS specific applications you develop, or build them. Or as a shared remote desktop host for specific tasks. Also we had (recently deprecated) macOS Server package for quite some time. So it's not unsuitable for servers. It's more suitable for specific jobs as a server. Installing Linux servers are too easy now, so I don't think macOS should evolve a "server-specific" version either.