I can honestly tell you that it doesnt cost alot to produce 6 lbs of weed every 2 months with 16 plants using a soil less medium

1 time cost for 2 -1000 MH $450 & 16 potters $60

Using my strain of 10 yrs clones cost $0

Cost of sunshine # 4 $100 (3 bails)
Cost of electricity for 4 months $500 ($125 a month)
Water and fert $100

$700 cost for 6 lbs or 2688 gs thats a cost of only $3.84 a gram

Thats over a 1 g per watt too:hippy: