To begin mining bitcoins, you'll need to acquire bitcoin mining hardware. Bitcoin mining with anything less will consume more in electricity than you are likely to earn. It's essential to mine bitcoins with the best bitcoin mining hardware built specifically for that purpose. So is it really a good idea to start mining?
your have point and great idea's, mining are profitable ways to earn bitcoin or any altcoins without in risk in your investment because the capital investment which is the machine are in your own custody.
Electricity consumption are depend in the location or country you can stay because some country electricity is too expensive.