I'd really like to see numbers of plants for the spend, too. Someone growing 10 plants should be spending a lot less than someone growing 50, and of course, that should be significantly less than someone growing 200. I grow about 50 plants and chose not to invest in lights. I found the first year that the plants quickly outgrew the space I have indoors for them when I kept them warm - we have a very short growing season here, so they're in the house longer than if I lived somewhere warmer outside. I also grow in pots, so the first year had pots to purchase, but have reused them each year since, only adding one or two more. I also reuse the Solo cups that I cut drain holes in, etc. So what I spend on a yearly basis depends on the amount of potting soil I decide to purchase and nutes. Also whether I purchase plants or start my own from seeds harvested from the prior years' grows, or some combination thereof. I guarantee my spend is way less than sicman spends!