Every store has its benefits. Superstore is good for boxed stuff, but terrible for fruits, vegetables, and meat. Co-Op has a good deli, and meat department. Safeway has a good bakery, and some poultry Co-Op doesn't get. I have a theory the meat gets sold to Co-Op first, what they reject goes to Safeway, what they reject goes to IGA, and what all three of them reject (the cheap no quality crap, leftover scraps) is loaded up by the truckload to the Superstore.
And you don't even want to KNOW what happens to the stuff Superstore doesn't want!