These are not grocery stores as most of us think of them. They are small, independent stores owned by Chaldeans (Christians from the Middle East). Prices are high due to reduced competition, security and shrinkage. Choices are limited.
Recently a large chain, Meijer, opened a full service Walmart like store within the city limits. It was headline news.
Meijer is good stuff. I wish I could hav brought them to TX with me.