I was so sick of smoking for 2 decades whatever I could find from dealers that almost invariably put me in stupid mode: trouble finishing a thought, stringing sentences together, couch-lock, etc. Then after learning the flood of information here about everything (and so much more to learn), I heavily researched a strain to spark creativity with focus and came across Shaman, a strain that's been around since the eighties. I first used the search engine at leafly.com (cool site--plug in the effects you want, and the appropriate strains appear) and then tried to confirm everything at various sites. I just harvested (1st time ever) about a month ago, and I cannot speak highly enough about what it's done for me. Clearly, with few exceptions, I had been smoking indicas my whole life, and now I know I absolutely prefer at least sativa dominant strains. I do a lot of writing, and Shaman has sparked monumental breakthroughs for me regarding creativity. Ideas just manifest themselves and everything just comes together and makes sense. I can't wait to try others like Malawi, Kali Mist, Jack Herer and Durban Poison. Not that this relates to the varieties I mention, but I would guess that just like any business that wants to thrive, new shiny things have to be invented to satisfy mass consumerism; hence, a new strain every month. I'm not denying the novel effects they promise; I'm a sucker too and obviously up for trying them, but I'm thrilled to have started with something that has a long history, is reasonably priced and does not make me stupid.