the idea of it was to provide cheap or free meds to one's patients and to pay expenses by selling excess. For me, this was always too much of a pain in the ass anyway. I had a couple friends who were patients and charged them less than it cost to produce for above what they were given for free. I didn't profit from growing at all, except for the experience. It's been a great opportunity to learn getting to grow and use a variety of strains side by side. I've learned about what meds work when for my wife and I and previous patients, what different harvest times means for the same strains, the effect of ph and Ca+Mg and nute levels on different strains. Some stains ability to ripen in a CO2 rich environ. and some not, and their ability to withstand certain stresses. I just have to scale back my long term side-by-side experiment. It's been hard letting go of living lines. The availability of good genetics now makes that less of a big deal..