It's cheap but the power efficiency is everything long term and better for density. Electrical infrastructure is a bottleneck.  My rx 470s and 1070s outperform this substantially. Plus this is terrible for home mining if it sounds anything like my S9s. A GPU is made to be quiet. It is also nice that if I ever want to resell my cards I can get a little money. I can see how this can seem like a good idea but my Bitmain stuff needs constant attention. My GPU stuff I sometimes forget about because of the stability and ability to stay cleaner. I haven't bought GPU in over a year but I remember seeing mining specific cards in bulk for 200 each. Rx 470s. Prices are relatively close.