You produce only for you or maybe a little more, it is not the same job when you produce many Kg, the amount of work is huge, as I already said you have no clue of the effort needed to create a big crop. Farming in your country is very different than the rest of the world. You're forgetting to easily the value of the work provided.I grow my own medicine for pennies to most growers dollars, the only things i buy that is additional is perilite for my potting mixes, every other thing i buy as a base ingredient, for example. i make all my soil mixes from base ingredients, buy all my amendments in bulk and by themselves, rock phosphate, k mag, and leonardite i buy them all in 25-50kg sacks cheap. my compost i make myself with a specialized mix from our chicken house. I make my own liqioud organic fertilizer with fish emulsion, dry yeast, and molasess that i purchase the molasses from surgar cane factory cheap , fish emulsion in 5 gallon jug from the fish processing factory its extra work but when you buy ingredients one purchase last 1-2 years in that size. knowledge is power.