Comment by biastoact

It is not unlike Prime Video and Prime Music (among others). When you run a membership program you create offers that increase the perceived value of the membership and engagement with your ecosystem. Similar is Costco gas, people wouldn’t drive out of their way for the discount if they didn’t already pay the membership. And while you are there you might as well pick up four times the bread you need, more milk than you consume in a week, a new camera (that was probably cheaper online), and a hot dog on your way out. Getting the value out of that $100 membership leads people to consume far more than they normally would.