Ahhh...the joys of an outdoor grow! Not everyone has the space, living environment or legal recreational-use laws as some. Therefore, YES, some people spend a lot of time and money getting their indoor grow conditions optimal for growing cannabis (including privacy from nosey neighbors, house guests and passersby). It would be great to grow ten-foot plants but not everyone can. Some have to settle for 4-foot or 5-foot plants and reap increased yields anyway they can. Soooo - it is not that "simple" for some people as others.