I wouldn't buy an old Mac Pro for photo editing. I use CAD software, and I render some 3D images. I use a lot of libraries, and I need a good amount of backup storage. I try to deliver electrical documents and in like many different formats, for building buildings, and for those other designers to eventually give the design documents to a constructor to build these buildings. I chose to stay with Apple for now. I don't know if that's gonna last. Because apple is an a** today, at least towards us creative professionals.
At least today Apple is an ***. We don't know if their a*sessne** would change, as of any day now.
We, as in our company, are, or were, about to acquire some iMacs. We really need the new blood with machine performance. The obstacle did not come out of the corner. This new blood will come with HIGH SIERRA. High Sierra has got a few of a problems still, at least with our favourite software. We make our living only - and allmost only - with that software. Our other software is secondary.
The result is, we cannot buy anything new from Apple, not at this time. We need to be able to do our job EVERY day. We do not have the time to wait for software updates from Apple, and to comply with our preferred software.
I agree it's the matter of two sides acting, Apple and the software company. I just wish Apple would not be so harsh and adamant, so that they will get aparted from some great SW-companies of my likings; Graphisoft like one example.
Umph; Though I will not be, I think you should be perfectly served with an iMac, the one with the highest configurations. Just don't do the bargain level offers with iMac.