Assuming that this is true (which it is based off of the other comments) then that is EASILY worth the extra 4000 or even 10.000 USD to someone who needs real-time audio to do their recording or other audio creation job.
When I became a professional (in another field than audio/music) I developed 0 tolerance for tech that didn't work or that has me fiddle around with it for hours to work. It financially just doesn't make any sense to spend your time on that. It also doesn't make any sense from a mental health and free-time point of view.
I think that was the point (even though I'm not knowledgeable on the subject, other than having spent many day of my hobby-life trying to get Cubase to record with audio monitor (VST) without jittery latency on Windows and utterly failed).
Just going from the dinky 256GB SSD your 6000 machine comes with to a more reasonable 2TB actually takes you to 6800.
Furthermore for this very substantial price you are buying a machine on an arch they are in the process of abandoning a bigger issue than the price.
To recap in 2013 the trash can came out. It was I guess OK but by 2015 its specs were noncompetitive. Between 2015-most of 2019 there was no real great answer for a mac tower. At the cusp of 2020 the new tower emerged followed 1 year later by the announcement that everything is moving to arm sooner or later.
Out of the last 8 years there has been one year in which it was a great year to get a mac tower and only if you are rich.