Petrol prices in Australia are a good example of being played for fools, they make the price artificially float up and down up to 40%. Therefore there is no direct price for any individual service station to compete on, the consumer gets sick of playing the game of waiting until its cheap and just fills up whether its 50 cpl or $1.50 pl. It's a mass unofficial collusion that the gov don't want to touch for whatever reason. What is a litre of petrol worth, well apparently somewhere between $1 and $1.75 at the moment, funny that the price of oil or processing has not changed much... Imagine if the price of milk floated between $1 and $2 a litre, milk gets processed and transported by trucks the same way petrol does and the price does not fluctuate.
The other one that doesn't make sense at the moment, Beef farmers are getting record prices for meat. Abattoirs and butchers are going out of business, so what is failing? Why are the farms getting record prices but the processing is failing?