I use a 2010 Mac Pro (with 24 cores and 32 GB of memory) for must of my computing needs. I need a more up-to-date machine just like it. But alas, Apple says that the Mac Pro will be heavily influenced by the “Pro Workflow Team, a new unit within Apple that examines and determines real workflows for real pro users. The focus, at first, is on visual effects, video editing, 3D animation, and music production."
But not all Mac pro users are single-tasking creators. I do everything on my Mac Pro: programming, graphics, photography, music, desktop publishing, Web site design and maintenance, remote sessions to other computers, and running Windows apps in Parallels. I also have about 50 TB of storage.
Apple, please consider us, the multi-aspect users.