When I played it with my uncle we changed the rules to make it more realistic.  First all expenses and everything else were doubled.  Don't matter if it was on the board or in the farmers fate and operating expense cards.  Only thing we left alone was the OTB cards.  Usually whoever drew the "income tax" card lost.  You got $500 whenever you went past go and you only started out with 10 acres of hay.  Since there were only two of us we could buy out the other farms at a cost of $1 million each.  We also used Life money in addition to the original farming game money in our version.  The winner was determined by two ways.  However hit the $50,000 debt ceiling first or whoever bought out the most farms first.