There've been questions about who is the iMac Pro really for, and because it's non-upgradable, people who need a serious workstation will not buy it. While the iMac Pro is a targeted for a specific niche market, I think the truth is that the iMac Pro is made as a marketing stunt. For a very long time, Apple did not have a 'halo product' that people can aspire to. The 2013 Mac Pro tried to do that, but it failed terribly because a) it was never updated and left in the dust but more importantly b) it never aspired to any lower-priced product that the average consumer can buy. With the iMac Pro however, I think it will influence a lot of people into buying iMacs again; It looks just like any other iMac (but with an exclusive Space Grey finish), and it instantly got all the love from the internet, but because it'll start at $5000 and doesn't come till December, most people will just get the $2000 one right now. The iMac Pro is the halo product of Macs right now. Think of the iMac Pro as the AMG of Mercedes; everyone wants one, but most will end up with a regular Mercedes. And come this December, you'll see all these big tech YouTubers get one, drool over it and its space grey finish with matte black keyboard and mouse, many people will get excited, but they'll go with a more realistic regular iMac. The iMac Pro isn't mean't for anyone specifically, it's a tool for marketing and reignite enthusiasm back to the Mac (and iMac specifically) until they come up with an all new design.