From the NYT:

The 80 acres of rich farmland that Jeff Freking and his brother Randy bought near Le Mars, Iowa, on Monday for $10,000 an acre would seem to have nothing in common with a condo in Miami or a house in Las Vegas.

But as prices for agricultural land surge across America’s grain belt, regulators are warning that a new real estate bubble may be forming — echoing the frothy boom in home prices that saw values in Miami and Las Vegas skyrocket and then plummet.

“It just seems to be going up in leaps and bounds here,” said Jeff Freking, who bought a similar farm, also in northwestern Iowa, for $6,000 an acre just two years ago. “Everybody thinks it’s crazy.”

For more, see: In Price of Farmland, Echoes of Another Boom