I disagree,but I personally dont like to waste cash.I grow in a basement completely open to the humidity in the summer and dryness in the winter.but as I said theyre only really even worth it if you go to a smaller room ideally more sealed because you can save them,and use them longer for drying, if the environment is controlled. however the soil and solid genetics are 50% of the game imo. the environment and tending are the other 50% imo. but again just my experience and varied styled or organics has gotten me a good ways. SNS systemic as well as a soil hit with neem cake and karanja cake will stop lots of problems. probotic?Bokashi also helps tend the soil especially outside.But you are beyond welocme to grow how you wish and Biscut is correct 100%.its yours and do it how you wish.Happy harvesting.