The aforementioned Ryzen AI chip is exactly what you describe, with 128 GB on-package LPDDR5X. I have two of them.

To answer the original question: the Framework Desktop is indeed still at the (pretty inflated) price, but for example the Bosgame mini PC with the same chip has gone up in price.

Are your two chips in Framework Desktops, or some other package? I'm interested in a unified memory setup and curious about the options.