Heck, Intel might even not really have the production volume on all SKUs to sell to non-hyperscale! And if that's true, then why would they do anything other than milk the few customers it deigns to sell to?
Home users don't have liquid nitrogen piped into their homes or even really the expertise for hot vs. code aisles, but AWS is building their own datacenters, at which point they could pipe liquid nitrogen in if they chose to. At the scale and concentration to AWS is building at, I certainly hope it leads to faster computers, if not bigger AWS bills.
The way I recall, AWS had to be embarrassed into offering GPU instances rather than taking the lead in, so maybe there's a competitor out there building for speed.