Earlier quoted context omitted.
And this is exactly why I only shop at Costco. While other retailers try to get me to buy more stuffs, Costco try to make sure I'm satisfied enough that I'll renew my yearly membership (their main profit source). The incentive structure aligns very well.
Buying in bulk is about having the ability to both afford next week’s food this week and have the means to store it. Not to mention the annual subscription. Responding to a comment about dollar stores preying on the poor with, “that’s why I shop at Costco” is… a choice.
It really is a luxury that a ton of people can't afford.