Memory supply isn't what held back XServe. We wouldn't need XServe if Apple treated the Mac like a regular computer and supported usable, first-class headless workflows and eGPUs.

The writing has been on the wall since 2019. Apple doesn't like the old way of computing, their goal is to expand the ecosystem by prioritizing install-base and then pushing first-party service offerings like they did with the iPhone. And like they did with the iPhone, Apple is great at ignoring power users to focus on features that make them more money.

You may be waiting a few decades for this type of product, memory supply be damned.