Lets look at all foods and pricing.  Only milk, chicken and eggs have marketing boards yet beef, pork, vegetables, fruit, cereals, lamb, etc are all consistently cheaper in the USA.  So is it the fault of marketing boards that all your food is more expensive in Canada or is it the fault of the Grocery conglomerates.  There are only 3 main grocers in Canada at present so where is  the competition form them?  Marketing boards are the fall guy but no one is willing to look at the entire picture.
Galen Weston would love to see the end of the marketing boards but only because it would mean a larger profit for his family .