I’m seeing these second hand for $1,000.00 ±. Are they still profitable?
They will only make 1.5 dollars at most a day because the miner health is 20 percent. I would not recommend it.
How long to heal its health?
It will never be able to go back to 100 percent,
It can takes months to even years to go back to 50 percent health, or you can buy the token to restore the health, but that costs more than getting a new miner. It’s best just to get it new.
I’ve been a MX2 Pro miner for over two years. I did a large withdrawal but even with fuel levels down I am earning over $5/day. Things may/will change as rewards begin to transition to DHX at least to some degree. (It’s held up well, BTW)
I would hesitate buying a used miner if for no other reason then insuring that mining profits go to only your wallet could be somewhat problematic.
I know that Vosk is FUDing the project and I get what his gripes are. That said, I have installed my two miners outside outside for two years without any problems. (I hope I didn’t jinx myself)