Soooooooooooooooooo... ya... about that mining is pointless..
Well, congrat. Did you take into consideration electricity bills?
No as I have also not added the fact I could sell each for $350-400.
I wasn't there, so I don't know, but I am betting whoever told you that you wouldn't ROI probably didn't think you would pretend your electricity costs don't exist or pretend you could sell the device for twice what it is worth (even ebay has them for $200.00 now). TBH, the fact that you have to fudge the numbers to break even probably proves their point....Just sayin.
.1 * 24 * 90 = $216, Cost for hydro over 3 months
4 * 200 = $800.
Something about something with fudging numbers about something?
Now onto fudging numbers you're not to bad. Goes one Ebay, finds the lowest price with a week before the end of bid acts like that's what it will sell for. Now Kijij when I see an item up, call them and they tell me it's sold I can assume it's selling at that price for around a week or two.
http://www.ebay.com/itm/BITMAIN-S1-180GH-IN-HAND-AntMiner-USA-Seller-/271528849125?pt=US_Virtual_Currency&hash=item3f38616ee5
That took 4 seconds. 189, of which the seller will get about 160.
And of course, 90 days and 24Kw/h per day I assume you had them underclocked quite a bit. So maybe 150Gh/s each. Going back 90 days to March 29th by my calculations yields earnings of 3.3BTC but the devices cost 4BTC for 4.
Anyways, Im not trying to argue with you, I have no horse in this race. I just think it is disingenuous to ignore electricity costs in your calculations (unless of course you have free electricity).
So congrats on ROIing