I was told by an older friend of mine that 40 acres is all one man can really take care of, if he farms it and really keeps it up. I believe this is probably true. I have had a big farm before, just over 350 acres and it was just a never ending job of catch up. I now live on 5 and it is just not quite enough. I recently bought an additional 20 close by and look forward to getting it ready to use. I really believe in all my years of farming in various forms my friend was right, about 40 acres, if a man really manages it, is really all one man can keep up.