$2.17 pfft.

Pack of 50 good tomato seeds: $3.50. Bag of manure: $10. String for tying up the plants: $2. Sticks to tie them up to: found in the yard. Water: no idea. Plant 30 seeds, get 20 plants big enough to transplant. Grow a pithy 5lbs of tomatoes from each plant in your first year because you don't know what you're doing. 100lbs tomatoes, would be $5/lb at the store (and don't taste as good), $500 - $15.50 = $485 savings, less water costs.

Same set up in the next year, less seed costs (you kept yours right?), $50 in steel pipe to trellis the tomatoes to, few hours of YouTube University, and look at that, twice the yield. Now you have to buy some ball jars and a pressure canner ($100). $1000 - $162 = Still $838 ahead. And you now have fresh jarred tomatoes for the whole year.