What's the numbers for a 48-chip refit giving you 4TH 240W wall down to 2.6TH 200W wall for, say, $600 all in? That could be possible with ASICs at about $8, which is really about the most I'd want to pay.
I will play with that set up .
If you can build 4 th at 600 usd
that uses .07 watts which is 280 watts it could do roi right near the ½ ing
based on 6 cent power----------
based on 600 usd price for the miner
based on 399 usd a coin.
and based on 7% growth.
the need for gear may be not for filled as diff is that high.
I believe s-7's built at 300-400 usd mining at 2 cents are doing the diff jump