Long are gone the days when you could throw anything into the soil and get crops growing. Needless to say that, those plants would be considered valuable in every sense of the word. Not anymore.
The vegetable growing landscape has changed drastically. The dynamics are well predictable and are attributable to our ever-changing lifestyles.
For example, how many of your family members including yourself would choose a veggie over a beef snack? How many of you owns a kitchen garden despite calling yourselves, gardeners? Do you even have the space to establish your vegetable garden to start with?