Not trying to sound condescending but how old are you? Everyone's thought this way at one point or another but we all get realistic with ourselves. What do you support yourself with while they're growing or you're trying to find customers? What happens if something wipes out your grow? Are you prepared for the consequences of getting caught?
At least prison= 3 square meals a day. Something that may be easier than surviving off a $500 grow.... You do know that you can only harvest every 3-4 months right??? At least until you an succesfully clone. Woohoo!!! Sell 2 ounces every 3-4 months.