The recurring answer here seems to be that people prefer the "bang for your buck" and perf/$ that Radeon has offered. The problem with that sentiment is that it doesn't really help AMD's bottom line or financial position. $200 used R9 290 cards are a great value proposition for the consumer but it really doesn't help AMD very much unless that value leads to a future sale on the high end this generation. AMD needs to reach the mind share and perceived value that NVidia, Apple, Intel, and Samsung have. That is that consumers no longer view them as a great "bang for the buck" solution or a budget friendly solution.
The challenge RTG face is to convince those buyers who buy Radeon to buy the brand because of its quality and performance, not because you get a better deal. Most normal people don't care that they pay 35% more for 15% performance. I work in PC sales and do custom builds for a living and no matter how many times I recommend a R9 380x over a GTX 960, or a R9 390 over a GTX 970, my customers will always go Nvidia. Why? They don't even know, they have used it in the past and it worked, so why change what isn't broken. I've even gone as far as showing my more knowledgeable customers hard empirical data that supports the claims I'm making about relative performance to no avail. "Nvidia is better, Radeon's are hot power hungry space heaters" is what I get 90% of the time AMD is even mentioned.
I hope that everyone that said they lean AMD on this thread actually goes out and buys the high end 14nm cards due out, or even better buy 2 mid range for crossfire. AMD needs the money in the price points with the high margins to continue to stay competitive in this market. Radeon's being cheaper than Nvidia taking market share for razor thin margins isn't a strategy that will last long term as long as the market perceives their product as inferior.