This paper provides a methodology that can be used to weigh the costs and benefits of precision agriculture in the measurement and application of variable-rate production technology. Empirical estimates of the economic value of precision farming in the form of variable-rate fertilizer application to corn fields in the mid-western United States are calculated and compared to the current cost of investing in this technology. The results of this study indicate that the use of precision technology in the application of fertilizer for corn production in the United States is not profitable over a relatively wide range of corn prices, nitrogen prices, and agronomic differences in soil characteristics.