I can't figure out how to link, but if you search me you will see elsewhere that I explained that bigger is better for the soil.

Most small landholders should sell and move to the city. You need a fair amount of size to make a decent living selling something cheap. Though my biggest worry is the medium sized farmers - wasting $10/acre in extra chemicals when you have 600 acres is only $6000 - you probably won't even notice it and in any case not wasting it costs investment too. When you have 6000 acres though that $10 is a larger number and you can afford to put a lot of money in better whatever to not waste it.