"Kroger is much more than a grocery chain - it's a company with the ability to steal business from Walmart, Target, Whole Foods, and even McDonald's." - Kate Taylor, Business Insider, October 31, 2015. Here is the article.
Kroger is the Everyman/Everywoman store. As with Facebook, you never have to leave the Happy Valley.
There you can get organic/natural food, a huge assortment of discount private-label merchandise, prescriptions filled, and highly competitively-priced gasoline. There is a small dining alcove for chilling.
In addition, once you sign up free for the rewards program, you have access to weekly super specials which are even less expensive than Wal-Mart's pricing. For example, this week, two packages of ready-to-eat sliced grilled chicken were $5. In Wal-Mart today each package sold for $2.94.
The rewards points from about three weeks of shopping can lower the price of each gallon of gasoline as much as 40-cents. You bet, the loyalty program is mega effective.
On the first Wednesday of each month we Baby Boomers get special reductions on groceries. If we forget to ask for them, the check-out clerk tactfully asks if we want to take advantage of the discounting. And I don't know if this was staged: When I requested the discounting, the clerk apologized and asked for ID.
Here in Tucson, Arizona, the Kroger subsidiary goes by the Fry's brand. As I was relocating from Connecticut to Tucson, the complex I am still living in was recommended to me because "You can walk to Fry's."
Some even find shopping there part of The Fun Economy. It's like, "See you at Fry's."