Guys,
A real sad day for me. I've had to switch 5 of my Avalon 741s off, BTC price drop puts the 741s in negative territory until a price pickup. Still got the 841s mining on Kano

this makes no sense... unless you were to keep it off permanently?
If you continue to mine, you will get BTC, even if value is lower that expenses, the increase in BTC value will increase all of what you had even what you mined at a supposed loss becuase your calculation was done for the " moment" when BTC value was down.
The only thing you do by doing this temporary shut down is not make any bitcoin, and when you start back up again, you had that much lost time mining...... while difficulty went up.
so unless you plan on keeping them off permanently, there is no point to wait until BTC value goes back up.
FYI S7 profitability according to nicehash calculator is also about -$5.00 per month now too.
just hope that sales drop to nothing and miners start burning out. :-) difficulty will go down.