One can purchase a MF 135 or a 600-800 Series diesel Ford Tractor for less than $3000 and plow up a large field, bush hog, and have a means of transportation if the SHTF. With a storage of 250 gallons of diesel one can live a couple of years comfortably after the SHTF. The tillers are gasoline and if the SHTF gas is going to be real hard to come by.
you make a GREAT point!!