It's really hard to justify buying a "new" Mac Pro that is a 4 year old design at this point. I keep hoping that Apple will announce a revamp but the days since the last release keep climbing and best guesses have the inside date at mid to late 2016 at best.
Since my creative applications are mostly subscription based and cross platform, software costs aren't so much of an issue anymore....
I have been using the Mac since '85. I have not used Windows since XP (job required) but I still get hives when I am around an MS box. Still this may be the future.
Sad Mac. No happy gong.