Tell my about this BASIC research. What can you research without knowing the most important part of the equation - the new hashing power introduced to the network? So far there are over 35 000 D3's running. The picture would be very different if there were 10 000. You could not known that in august!

The one I tested is 1300W. It depends on the efficiency of the power supply you use. My point is that there is difference between over delivery and simple factory overclocking

One more thing - I hear people say that Bitmain even over delivered because they announced 15Gh and now you get 19. People from early batches report 900W from the wall. 19Gh batch is 1300W from the wall. Over delivered? Really? )) They rely on you being stupid, to say and think things like this. Please! Get a calculator

I read everything you've written so far and I have a thing to add. Nobody can convince me that someone like Bitmain could not make the simple calculation how the hashing power they introduce to the dash network would affect it's difficulty and profitability. Hell .. if I knew how many units they produce I could make the calculation. They new exactly what they were doing. They knew that MAYBE only the first batch would get some RIO eventually but they kept pushing the D3's anyway. Please don't be fooled by standard practice and don't talk about them like you would talk about some other company that sells their products. They make a ton of money from their farms. A ton! The profit from selling these units I guess is like less than launch money for them. So why would they care about you? Maybe all of this is just some personal vendetta against other ASIC developers. Whatever it is if I were you, I would think twice before buying from them again.. even with discount. You just got fxcked. Now you know why everyone in the ctypto world is trying to get rid of the monopoly from companies like them.
Soon the D3 would not even worth as a heather. Here is the profitability trend from Oct. 29 until Nov.3 https://ibb.co/btykVw That is before the first November batch.
That's from the 19.2GH batch. What about the 15GH? How long will it take until you have to pay for keeping it running?
The question is what are YOU going to do from now on with you worthless tin box...