Re: A thought.
"I'm guessing that only a few businesses running open source use 1,000-CPU desktops."
The size and power consumption of ARMs means that stuffing fifty to one hundred plus a suitable GPU in a SOC the size of an existing intel socket and a 70W TDP should make sense for most use cases.
Interestingly I'm seeing grumbles that ARM's licensing fees are too high. Perhaps MIPS time has come.