Chem-Dawg was a bag seed yah?...that plant alone has changed cannabis cultivation significantly. That said growing bag seed isn't necessarily the end of the world.
I'm gonna play Devil's advocate..
Let's look at "growing Marijuana in Hawaii," starting with the 1850's, which is when workers from a variety of countries were brought in to work the Cane fields. These workers
supposedly brought the first Marijuana to Hawaii. These workers did not actively seek out the best genetics to bring here, they grew seeds out of their stash...
Bag Seed...
Fast forward to the 1960's and 1970's...
Again most of the genetics that was arriving here was bag seed....
While there certainly may have been proactive growers who were actively seeking out top notch strains by making pilgrimages to Columbia or Oaxaca, those folks were a minority..
In most cases somebody scored some killer weed in California, or Amsterdam, or Afghanistan and they saved the seeds from the bag...
On a side note... Here is an academic text coming out in the next couple months that some may be interested in..
One of the co-authors is UH Botany professor Dr. Mark Merlin and the guy is a wealth of knowledge not only on Marijuana, but also an expert on the local plants and herbs of the pacific islands..
Clarke, R.C. and M.Merlin. June 2013. In Press. Cannabis: Evolution and Ethnobotany, Berkeley, Los Angeles, London: University of California Press.