Don’t forget the time and tools needed for pre-season prep, start failure rates, time spend weeding, losses from pests and rodents/deer, and time and cost to can and preserve. All of which increase exponentially with the garden’s square footage. I love to garden and have maintained one myself for years. But the fact is it’s purely a hobby until you reach a certain threshold of productivity, at which point requires at least one person working the space full time for it to provide enough food to be worth the scratch.