If you have good credit, I would buy mining equipment with credit cards (find one with 0% interest for 24+ months) and use that card for your mining expenses. I get as many reward points as I can this way.
That is like me having 3 jobs at that point.
1. main job that I would not quit
2. mining (5 rigs and will continue to grow)
3. reward points paying for vacations or other fun things I wanna do (I am not paying anything really from my own bank account at that point)
All this can be done and if you did it the right way (paying off each month).
Absolutely correct THIS is just fine.
Did morons even read the critical last part of this post before responding? He's PAYING IT OFF EACH MONTH. Therefore, not going into debt to fund this.
Putting expenses on credit cards and then paying them off monthly to get the rewards is one of the smarter things you can do to maximize savings. He's got this figured out.