Hardwares

price of the case + 1650w power supply  + 14 fans (I replaced all of them) was 650$
each 1080 ti cast to me 1097$ (total 8776$)
to replace of the 14 fans of noctua (low noise and high cfm) cost to me 328$ total
and I also replaced the fan of the psu 1650W for les noisy and better CFM (noctua  14mm 2000rmp give me 102CFM), the old one was noisy and less CFM  cost me 30$
I was idot and bought 8 pci-e Riser  for 26$ each only because only one store in my country sell it for high price and I didn't have time to wait 3 weeks for ebay (I don't live in USA) - total  208$
a 850W psu  cost 220$

total hardwares cost was: 9992$
(this is not include the desktop and laptop, I had them before, just price for the closed case (case, risers,  2* psu , 14 new fans  and 8 * 1080 ti)

I don't live in USA, so the price may be cheaper



Electricity    

my mining rig is about 1800W - 2000W (7 * 1080 ti + 14 case fans)
my pc is 350-400W ( 1 * 1080 ti)
my laptop is 150-200W
two tables fans to take out hot air and give me new cooler air  35W each 70W together (better than air conditioner in the that season)

total around 2500W
and I pay 0.15$ for 1 kilowatt-hour
total 295$ per month




I am a web programmer and I made macro/bot for fifa game that make me a lot of fifa coins (the xbox/ps4 game not alt coins )
I run it on my pc and my laptop
I sell them for about 1,000 $ per month so I add it to the income