And... ...the market for rice will totally collapse because it would cost more to transport it than the farmer would make by selling it. Feel free to substitut

And... ...the market for rice will totally collapse because it would cost more to transport it than the farmer would make by selling it. Feel free to substitute "rice" for whatever commodity which becomes "too cheap to meter". The "invisible hand" has a tendency to bitchslap people who don't have an even modest understanding of economic principles.