No, because on our tests - the NVIDIA cards outperform the AMD by far in terms of efficiency (not raw hashrate).
As we build the machines to run for at least 2 years, and calculate the ROI based on that lifetime - we found out that the
higher price of NVIDIA cards is by far compensated by their lower Power consumption.
Our NVIDIA rigs save up to 30% of power compared to the same hashrate on AMD. (For example Nvidia GTX 1070 - 30.5 MH/s @100W vs AMD RX 580 30-31 MH/s @ 150W)

But we actually do have an AMD Card supplier - so if there should be high demand for specific AMD Mining Rigs, we
could deliver them. We have RX480, RX570 & RX580 Test Mining Rigs in our locations - so we already built AMD based machines