Ummm no.
The GPU profitability calculators
already ignore the cost of the mining rig. If they say your returns are Negative, then you get more coins just buying them, than burning the power mining them. They are only counting the power cost vs the returns. Which is why the guy with the massive GPU rig is shutting down, and buying coins instead paying $1000/month extra on power bills. He will get more coins spending the money directly on coins.
So your whole point is WRONG. Stunning failure of basic math here. I guess that not only were the MS Paint Art necessary, but clearly still wasn't sufficient.
If you spend $1000 on electricity mining, you only get $800 worth of coins.
Which is obviously less than the $1000 worth of coins if you just buy them.
It doesn't matter if it's small amounts, or large amounts, mining is still a losing proposition.
You can change that to $100 of electricity and $80 worth of coins, or $10 of electricity and $8 worth of coins, the point is the same:
The cost of electricity is MORE than the cost of the coins mining returns right now. Maybe you missed the link last time:
These guys are sensibly shutting down mining rigs and cleaning them up, while figuring out what to do next.