Many stores the producers bring their things in. It was not uncommon to get stuff from them to put up but the store itself generally did not make it. They just put up what they get. I don’t know what universe you live in but that is how mine has in meat space where you are making the comaparison. Promotions were usually more and bigger for the big guys. the guy who sold his homemade stuff maybe had a bit of space by the register.