I have never had tomato jelly. Was it sweet tasting? Did you like it?
My crops don't cost me very much at all, just my time and I think that is what you mean when the guy says it cost him hundreds of dollars... what is a person's time worth? For me I know I could save money by not growing it and just buying it from a store but the gardening process itself is so peaceful. It's like a meditation for people who would never go to a meditation clinic.