Hmm... It's a romantic notion, but the suggestion doesn't scale. Which suggests that maybe there is something missing. If $1 worth of beans will yield 120 pounds of coffee, then $100,000 worth of beans would yield 12 million pounds. Thinking about what it takes to produce that much coffee brings to mind paying for the land, irrigation, soil treatments, harvesting, storage, insurance, etc., etc. So the $1 worth of seed-beans is not the only cost required to produce the 120 pounds of coffee beans. Without analyzing the remaining expenses, it's hard to evaluate the investment.