They can elect a consistent speed at a higher price or variable speeds for a discounted rate.

FORBES: The Road Ahead: Telecom In 2012 And Beyond

"Two major energy companies are currently offering cheap fix deals at the same price as the cheapest variable deals, cutting many people's bills by hundreds of pounds and guaranteeing no price rises for up to two winters, " he said.

BBC: SSE to raise gas and electricity prices

The price of corn is a critical variable in the world food equation, and food markets are on edge because U.S. corn stocks are plummeting due to the ethanol mandate.

FORBES: Feds Could Lessen Drought Impacts But Don't Bet The Farm On It

Also, your vehicle can upload its position to road authorities, so they can use variable road tolls as a traffic management tool -- raising the price on busy stretches during rush hours.

CNN: Behold the?all-seeing, self-parking, safety-enforcing, networked car

Even if the gap is plugged, Inenco predicts the price of electricity in the years ahead will be higher and more variable than at present.

BBC: RELATED BBC SITES

The price of Wheaties is not enough of a shared experience, and too variable due to all sorts of extraneous factors, to be used as a benchmark for anything.

FORBES: Oil Continues to Rise Because the Dollar Continues to Fall