What would be the reason that one would purchase this unit over the S9? Reliability is much better or so I have read, but power consumption is not. Would it be the fact that bitmain is not months behind and paying the scalper prices on ebay is absurd? Not trying to start anything here. Just attempting to confirm what I believe the reasons are based on my research. All in all given the retail pricing of both units wouldn't the S9 be the better machine 9 (not considering reliability).