Farm real estate values, a measurement of the value of all land and buildings on farms, averaged $2,160 per acre on Jan. 1, 2007, according USDA’s Agricultural Statistics Service. That’s up 14 percent from 2006 and sets a new record. Cropland values rose 13 percent to $2,700 an acre (up from $2,390 last year). Real estate experts say the increase is driven by multiple factors, including strong commodity prices, farm programs, outside investors, favorable interest rates and tax incentives. One can speculate with confidence that the ethanol boom is part of that picture.