Well, their understanding of 'expandable' is very narrow: Expandable with proprietary components (againWell they delivered a professional expandable tower like so many wanted. Now people will complain about the price and find some reason to justify continuing to use a Hackintosh build.
-no way to put in 3rd party SSDs or any HDDs at all
-no way to swap the boot drive (and there seems to be no Mac now where you can do that?!)
-no way to put in your own 3rd party GPU and certainly no nvidia support
-no option without those expensive GPUs (yes, there are Pros doing no video work)
I like the machine, love the case and how it opens, but it's too narrowly – though impressively – tailored towards a specific purpose.