Quote from: MattMell on January 16, 2018, 06:12:52 PM

Quote from: Craftsman32144 on January 16, 2018, 06:04:15 PM

I've been looking to add some more S9s to my minifarm. I tried to pull the trigger in last night's sale for 10 units, but my order ultimately failed. However, I came across the below calculator this morning and it has given me great pause. It shows that the difficulty level is ramping up so fast that they will never be profitable. Where do you guys stand on this? I'd really like to hear where you guys think all of this is headed.

http://www.mycryptobuddy.com/BitcoinMiningCalculator

edit: these are my assumptions http://www.mycryptobuddy.com/BitcoinMiningCalculator/path?hashrate=135&power=14000&rejectRate=0&hardwareCost=27000

the four biggest factors are the -difficulty increase rate, -electricity cost, - $/TH cost, -Bitcoin price change.
Only one you can control is electrical cost, so if yours is lower than most then you should outlast most. The others you have to take a longterm guess in my view.

Also, those calcs almost always base it on 12.5 BTC when in reality it's been greater than that (14-18 or even 19 BTC if you're really lucky).