How can i sell my s9s?
Haha, I'm thinking of selling my S9 or exchanging it for few 1070s lol.
funny you mention that, I just did the math 30Th ASIC = ~30.00 a day (us), 6 1080 ti GPU = $40 a day

6x$1300=holy sh*t!
1x$4000=nice!
By the way, to get 30TH you'd need more than 2 S9 and you'd be making like $40 a day at the current BTC price. I just think that GPUs are better in terms of options. You can mine whatever you want, lot quieter etc.