I agree, For a pump and dump cash crop a SOG running a drain to waste is hard to beat. Personally I prefer growing trees, as a grower I find it way more gratifiying, there's nothing like walking into a room full of 6-8 foot plants. Running a lower plant count you get to know your ladies on a near personal basis, I've gone as far as to giving my plants names, call me crazy but growing can be a very intimate experience, spending 4 months caring and nurturing a living organisms is very rewarding for me.
Itsme.