Assuming Lady Luck accepts pre-orders, I did my bit for Karma 2 months ago when I donated 22x retired s7's to Sidehack to work his majik on for resale through asicpuppy @ the damn good price of $499 (all sold out now of course). I don't resell - I donate retired miners, a lot of Sidehacks 2PAC stick miners use harvested S5 chips from my farm.
Ah, I did not know this. Well done, sir.
BTC mining is a bit funny these days.
Large, noisy machines working 24/7, doing incredible number of calculations, yet making just 0.002-0.0025btc/day ($15) for 14th S9.
S1s were making 0.08 Btc/day (forty times more!) in the spring of 2014. More even in $ terms: $40/day.
Profitability is being supported only by the btc price surge. How long would it last/continue?
If the price stops going up and difficulty continues to, we might find ourselves in the difficult spot during 2018 or in 2019.