Fuel prices watched by ACCC what next?

Seems to me that if the ACCC can get stuck into the fuel companies they 
should also get stuck into;

hotels who always put up their prices during school holidays

airlines who always put up their prices during school holidays - but they 
might have an excuse 'cos the oil companies always put up their prices 
during school holidays

restaurants who always put up their prices during school holidays

fish and chip shops who always put up their prices during school holidays

bottle shops who always put up their prices during school holidays

spray paint suppliers who always put up their prices during school
holidays

doctors who never put up their prices during school holidays 'cos they
dont 
work then

drug dealers who always put up their prices during school holidays