Most people are enticed by the mythical concept of consuming their own homegrown produce. As the mentally-retarded big guy named Lennie in Steinbeck's Of Mice and Men put it: "... live off the fatta the lan'." The idea of homegrown fruit and vegetables appeals to almost everybody... except maybe people who can't be bothered to cut an apple in half, before biting into it, to make sure it doesn't conceal a worm. Maybe meat is an exception. I'm not sure that everybody likes the idea of slaughtering lambs, or even chickens. I think tomatoes are a fine example of the merits of homegrown stuff. I have the impression that every tomato I've ever grown at Gamone has tasted better than any other tomatoes I've ever eaten. But I don't know to what extent this judgment might be purely psychological.
This year, at Gamone, the walnuts are exceptionally big, but the harvest is relatively small. The same might be said for my apple tree.