I agree with most of what you say, but isnt the picture and example of a different unit?  Also you are using a .13 cost for electric.  For example I have .07 which would double my earnings.

Don't get me wrong I am a strong supporter that the current change of bitmain to preorders ( 20 plus days out which is an eternity in crypto world ), not lowering price ( like they have done in the past to help their customers have a chance at a 100% ROI ). no coupons for returning loyal customers etc is not a good change.

Just want to help people make the best decisions....

- Note - The Net hash has gone from 132 mil to over 195 mil in last 22 days.  It makes you wonder about the lack of supply from bitmain all of a sudden for next 30 days and yet some other company is bringing so much hashing power out?  Wonder if that new hashing power suddenly goes offline when the s3+ starts to ship or all those new s3+ units get added on top of that staggering 60 million network increase.  I think I would be more concerned if it came off the network slowly as we approach the Sept 20 date.   Giving conspiracy guys some very damaging ammo.