That is your opinion, if you find it cheaper elsewhere please go ahead and buy it else where. When we bought them we got them for $4500 each, so be happy that you are getting them for around $1800 or $1600 each if they buy the lot.
Actually you paid ~10 BTC and you want 8 BTC after more than 6-7 months of usage.
Your calculation takes into account when USD rate was 475, so your argument is void. At current rate our purchase price would be 21 BTC, so 7 BTC is not a bad deal.
We would consider 6.5 BTC if you continue hosting with our hosting provider which is cheap and charges a low $75 /KW/Month.
Wissam
And your assumption of 21 BTC is for the price that you paid for a brand new miner almost 1 year ago. Like every used thing the value deprecates so the real value now isn't $4500. When SP-Tech sold out the SP31 miners the price was $2k for a
brand new miner, not used like yours so if we take the brand new miner price and we adjust it to the current exchange rate it is ~9BTC so your argument is useless*. So don't try to sell a used car with the a price that is higher than a new car.
*I am aware that converting a price from a few months ago to the current exchange rate is a bit strange, but I did it to show how wrong you are.Well you can try and buy a brand new SP miner now if you like. Oh wait they don't sell them anymore... Besides they were not bought 1 year ago it's been since November so that's 7 months.