Grocery Store and Habitual Food

My mom generally goes to a nice grocery store like Fairway that has a lot of different varieties of foods to choose from, however most of the time we end up buying the same things we always get unless we're going through a time where we have a good amount of money. If it's a really bad time, we will go to the grocery store down the block that has cheap and mostly brand name (or fake brand name) items, but we rarely actually go there.
We try and buy the items at Fairway that are locally grown or locally made. However, I've noticed in most stores, they dont have local things like that, and they often just push the most popular brand name items, by putting up signs or putting up deals (buy oen get one half off, etc). Those are probably the items they get the most of, because they are big brand name companies, and I guess that is why they want to sell them so badly.