Only costs about $20-$30 a month for 2 400w bulbs plus all the flouros and fans. Nutes about $50 with enough for my next cycle(only 7 plants). Cubes, pH testers, thermometers, fans, I would say I've spent about $500 total. Plus an ounce and a half per month is $250.
I can sell $200 an ounce, at least and ounce per plant gives me $1400 minus 2 ounces personalis $1000, plus the $500 I would have paid for weed before, which covers my setup expenses and leaves $1000 profit. More if my plants produce more. I wish I knew how much to expect.