Hi @sponge-bob
have never mined with equipment. only here in steemit, now in Venezuela especially in the city where I live have told me that there are houses where all the rooms are dedicated to the mining of BTC. Due to the electric power that is practically free, that encourages the mining in this country to be very profitable.
I also know that the same government uses mining equipment.
I have never seen or touched a mining equipment, but I do not rule out any power to do so and even have several to mine.
A recommendation to all should read the small letters. HAHA
If I were to mine again, I would choose a smaller coin that is less popular. If you were to mine a lesser known coin, you could probably earn 2 to 4 coins per day and then sell those to buy bitcoin if you must have that particular coin. I am sure you could make many more dollars worth per day in that way.
It is crazy to mine bitcoin when so many others are available to mine. Example: When Etherium first came out, I mined it with only two video cards and earned 45 ETH in a month. The price was not good so I quit before I had the chance to burn any wiring. My point is that new coins are much more profitable. Less miners to divide rewards with.