Those 2019 Mac Pros are never going to go down that low.

- They're forever going to be the fastest Intel Macs, which makes them highly desirable.

- The Mac Pro simply does not sell at volume anymore, unlike the Power Mac G4 which did sell quite well to regular consumers. So they're quite rare.

- Everybody in the market for a Mac Pro knew the Apple Silicon transition was right around the corner, so they probably sold even less than we think. Even rarer.

- The iMac Pro had been out for a little while when those came out. Most people who needed Pro hardware had probably bought an iMac Pro. Even rarer still.

No joke, I wouldn't be surprised if Apple sold less than half a million of those 2019 Intel Mac Pros.