We consider this 841 the best on the market due to 99% reliability, 2 year limited warranty (this is big for many people), lower DB rating, and actual performance being well above what is advertised. I think many people would be suprised if they actually threw a meter on one of the other brands miners what they are actually pulling with minimal TH increase.
I can only accept that argument if the price is right. If I can buy 3 S9s at the same price than 2 841s I can even throw away the S9s that fail and still make more money.
We will make pricing right just so you accept this argument....... Keep in mind pricing will include shipping on all items and no duties and taxes for those in the US.