Again, Nvidia only became a real option for serious crypto miners in the last 18 months. Until then anyone doing cost/profit analysis would have gone with AMD

Again, Nvidia only became a real option for serious crypto miners in the last 18 months. Until then anyone doing cost/profit analysis would have gone with AMD cards. When Bitcoin was worth mining on GPU (ie 2011), AMD cards were much better suited than Nvidia cards. It was about 2x difference for cards costing the same amount.