Just glancing at announcement of new Nvidia GTX Titan Z, and I'm quite amused to hear that it's for multi-monitor gaming. How many people are going to drop three grand on a graphics card for gaming?
I'm sure the number is non-zero, but I'm guessing it's a mighty small number. For sure, none of my friends who are heavily into gaming, or their friends, would spend remotely close to that much.
It would be cool to see an ECC RAM version in a Mac Pro in the future, though. Especially at a more sane price.
And I do wonder how it would do for bitcoin mining.