I am an old hippie from the 60s and have been growing for a few years now and I feel bemused by the vast variety of strains being sold. While there is some difference between mental and body stone strains, there is very little real difference in the potency and effects from most of the strains on the market. Strong pot is strong pot, and after a joint or so, nobody can tell the difference in the effect of strains anyway. I like to grow a strain with a good mental effect and a strain with a good body effect to have that variety, but I can't say that I can tell much difference between any one strain and another in terms of smoking potency. I have tried a lot of the recommendations on the sites, But I can't honestly tell the difference in the effect of strains such as satori, think different and nl5 x haze, for example, which I have grown for their up effects, or the kush and northern lights that I have grown for down effects, or the dozen or so other strains I have tried. They are all great and a few puffs gets you very high. I also wonder about the genetic stability of all these newer strains when I read about plants changing sex and having so many different phenotypes that you can't tell what you'll get. So, why are people so enamoured with all the different strains?