Potatoes are easy to grow, however even if you grow 1000 lbs of potatoes per year, at farm sale prices that is worth like $130. So how much of that $130 did you

Potatoes are easy to grow, however even if you grow 1000 lbs of potatoes per year, at farm sale prices that is worth like $130. So how much of that $130 did you spend on growing them, and how many hundreds of thousands of pounds would you have to be able to harvest and transport to make your salary - the fertilizer and equipment maintenance costs? All but the largest corporate megafarms are happy to make just a few percent profit on their investment, its one of the lowest return investments out of any industry. And it isn't a stable return either, that is the average over a few decades, with year-to-year yield and profit varying up to 30%. If you want to survive on all plants you grew yourself, potatoes are a good choice for the bulk of your calories and nutrients, but if you want to make any actual money off of it, the scale of operations needed quickly grow to massive proportions that makes it anything but easy.