This is pretty much a chicken-and-egg scenario. As an end consumer, I don't want to pay much higher prices for a product with lower performance and a smaller Software ecosystem than staying in standard x86. If it was competitively priced against x86 it would make sense, but that is impossible for a low volume, niche product, so they will only sell to power users with a lot of disposable income, which is not enough incentive to get economy of scale working to lower prices and increase availability. As such, is hard to get the snowball rolling downhill.