It is not healthy for the industry to be dominated by Intel and Nvidia. If someone else produces a decent alternative, we need to support them. Look at the stagnation with Intel CPU's over the past few years. As if that's not bad enough, because they have had no effective competition, they have had a free hand to price gouge their customers with impunity. When Ryzen debuts, all of a sudden Intel is offering cores and clock cycles at fire sale prices. It doesn't bother me for one moment that the Ryzen isn't as fast as the i7-6900K, because I can't afford an i7-6900K. What matters is that Ryzen performs better than the Intel CPUs which are in my price range.
It is the same story with GPU's. Whether or not Vega can beat a Titan, or a 1080ti is irrelevant to me, because I don't have the budget to purchase those cards. I want to see how Vega performs against the GTX1070 and GTX1080 and at what price point.
I've been waiting patiently, 'cause I need to replace a GTX780. As far as I'm concerned, if AMD can keep pace with Nvidia's current GTXxx80 offering, at a better price point, with open source drivers and better Vulkan support, I'm in.
And before someone starts calling me an AMD fanboy, my primary rig is an X99, with a GTX780. I don't care about designer labels, I buy whatever works, if I can find it within my budget.