Small farms have been disappearing because it's too hard to pay the bills on a small scale farm.
Property taxes are out of control nearly every where nationwide, Feed prices are double or triple, fuel prices to operate up 3-4x (I remember 60-70cent/gallon gas), medical and insurance is 5-8x higher if they even have any.
A gallon of milk back in the 70's was under $2. Today, 50 years later, you can still get milk for around $2 a gallon some places but much is closer to $3-4 gallon and most of that increase in price goes to the dairy that collects and distributes the milk and to the stores that sell it. Dairy farms barely see a 50 cent per gallon increase in 50 years. Do the math. No one today wants to work so hard for so little pay.