Here's what the canny New York Observer has to say:
There is, of course, a slightly more sinister reason to develop a sudden interest in agriculture. Last year, Marc Faber recommended to anyone: "Stock up on a farm in northern Norway and learn to drive a tractor." He sees a "dirty war" on the horizon, playing on fears of a biological attack poisoning food supplies. Those sort of fears drive capital into everything from gold (recently at an all-time high and a long-time safe haven for investors with currency concerns) to survivalist accoutrements. In this particular case, one might buy the farm in order to avoid buying the farm.
Remember, they're not making any more land.