While this is largely true (and in fact today natural gas is already cheaper than making gasoline from other sources), sometimes you can't substitute natural ga

While this is largely true (and in fact today natural gas is already cheaper than making gasoline from other sources), sometimes you can't substitute natural gas for gasoline, and some people will still want to buy gasoline (with its commensurate energy density, ease of transport, and worse pollution) and pay a premium to do so. In fact, I suspect the amount of natural gas burned to produce a gallon of gasoline is already substantial, with electrically-powered catalytic reforming necessary for us to drive around with octane rating numbers over "50", and by and large the cheapest source of that electricity being from burning natural gas.