People who wait in line for a 4 cent difference are foolish. In a 55 litre tank that's only $2.20 difference. Hardly worth the wait as those waiting for it burn away those savings anyway as they usually idle the car.
We can't control gas prices. I only do what I can to control it such as doing the speed limit, travel during off peak hours, make sure car is maintained and check/adjust the tire pressure regularly.
There are other things that are more pressing in life besides the price of gas.