Back in the 90s in L.A., I remember that that some grocery store chains were routinely more expensive than others (e.g., Vons always cost more than Lucky’s). I found it interesting while exploring some neighborhoods that in lower-income parts of the city, I was more likely to see the more expensive grocery chain than the less expensive one. And that’s putting aside the whole food desert issue with South Central where there weren’t any grocery stores at all. I’m not sure how the grocery situation looks now.