I've swapped out a lot of parts in my old Mac Pro, but at this point, I'd rather have something that "just works". And if my needs change, the resale value of this thing will still be good.
But I'm just an iOS developer, doing some multimedia and web stuff as well. Maybe that's not a "pro" by today's definition. :)
But then if you're a pro user who buys the thing to make money with, it's probably more tax-effective to keep it 3 or so years then buy something new
It's for people who have a need/desire for "pro" components but also want a thin/portable form factor.
But this is what Apple said:
"These next-gen Mac Pros and pro displays “will not ship this year”. (I hope that means “next year”, but all Apple said was “not this year”.) In the meantime, Apple is today releasing meager speed-bump updates to the existing Mac Pros. The $2999 model goes from 4 Xeon CPU cores to 6, and from dual AMD G300 GPUs to dual G500 GPUs. The $3999 model goes from 6 CPU cores to 8, and from dual D500 GPUs to dual D800 D700 GPUs. Nothing else is changing, including the ports. No USB-C, no Thunderbolt 3 (and so no support for the LG UltraFine 5K display).
But more good news, too:
Apple has “great” new iMacs in the pipeline, slated for release “this year”, including configurations specifically targeted at large segments of the pro market."
From the article I linked.
Nah, this is the stopgap they talked about when they had their "Come to Jesus" meeting with bloggers.
A real big boxy Mac Pro is supposed to come after 2017. Pre-announced, which Apple never does.
See: https://daringfireball.net/2017/04/the_mac_pro_lives
EDIT: They didn't actually say 2018, just "not in 2017"