You have zero protection if you pay with btc.
Even if you pick it up in person then drive 10 kilometers or whatever back to your home.
If it is doa or it breaks in a day you paid in BTC you will not get your money back.
S-9's Break a lot.
1 BTC is a good price but lets do a cost for your roi.
here is free power and 2% difficulty (at 3 or 4 % you are worse off)
along with a free psu you need 180 days before you break even.
Even if you pick it up in person then drive 10 kilometers or whatever back to your home.
If it is doa or it breaks in a day you paid in BTC you will not get your money back.
S-9's Break a lot.
1 BTC is a good price but lets do a cost for your roi.
here is free power and 2% difficulty (at 3 or 4 % you are worse off)
along with a free psu you need 180 days before you break even.
You took pool fee 2% but ddin't include transactions fees which you can get on most pool. Right now tarnasactions fees are usually 1.5-2BTC per block. So you are looking at least at 10%+ rewards. On other hand 2% diff increase is far too low in long run. You are looking at atleast 4-5% not to be overly optimistic.