I'm almost certain the whole 'denser is better' idea stems from the concept that denser buds means more weight per plant for the grower. Someone heard that was a good thing, and made assumption. You know how an idea can build. Your not getting free weed, your getting less weed, with more content per bud. Its not a big deciding factor on potency from my experience. Brickweed can be EXTREMLEY dense, and you can get a good high off a bowl, but if you weighed it beforehand, you'd realize why; your using more herb than you think when you grind a dense bud into powdery form dense buds usually end up in. To me, the good stuff is herb tha rolls down itself like molasses, when you empty your grinder. and that can come from all types of flowers. I know my insight is worthless to most,but I do weigh my bowls for honest comparisons and minimize bias. You cant get a new strain and pack twice as much weight into it than you have been using and call it good shit.