Hi,
I live in Lithuania
so mining last two years with no stop, even if profit was 20cents per day.
So i have 3 rigs
1 is 6x1060 6 gb - which makes 145mh/540w
2 is 6xrx580 8gb makes 186mh/800w
3 is 7rx580 8gb makes 214mh/1000w
so i'm getting ~545mh @ 2450w ~~
So it's revenue of 353usd/month with 172usd profit after electricify
electricify cost for me is 0.1025usd/kWh.
last year it was 0.9usd/kwh, this year it became more expensive.
So barely mined ETH/ETC with my RX rigs, GTX was on some other coins, just turned it to ETH when prices started to rise again.
ofc i will not ROI, because equipment was bought at high prices, but anyway it was good start. and i'm happy that i'm mining now, it's good hobby. also