Most people that buy video cards use them for gaming, video editing ,etc not bitcoin mining otherwise they would make bitcoin video cards asap. Remember a corporation is there to make money
Yes, but one could argue that gamers and miners fall under the same category: "Enthusiasts"
It's interesting however whether or not mining is helping AMD win market shares in the Enthusiast category. Like D&T pointed out Intel has the biggest market share of GPU's. But that's counting all the GPUs.
Most Enthusiasts buy High-End which means either AMD or NVIDIA.
I realize this doesn't help AMD's profitability more than being popular amongst HTPC Enthusiasts or making really cheap laptops, but at least it's something.
No, I'm not a stock holder. But I wish the best for AMD since we all know competition is what drives innovation & technology forward.