In modern terms I imagine that variety plays into it to a degree. Grains you can use to make a lot of different foods, make animal feed, reduce to corn syrup or ethanol or whatever other products (in the US at least that’s the majority of our corn production) and so on. Even before you get into the question of long-term investments versus immediate payoffs under capitalism (how long does an orchard take to start paying off?) there’s just more varieties of products and a deeper market for cereals.
In modern terms I imagine that variety plays into it to a degree. Grains you can use to make a lot of different foods, make animal feed, reduce to corn syrup or ethanol or whatever other products (in the US at least that’s the majority of our corn production) and so on. Even before you get into the question of long-term investments versus immediate payoffs under capitalism (how long does an orchard take to start paying off?) there’s just more varieties of products and a deeper market for cereals.