True Mac. But if people don't keep buying, the "seller" ceases to exist.

Customers, ......especially repeat customers, are paying for that and are therefore covering your "cost of doing business". Without them you can't continue to exist.

A business only has money in their pocket because a customer put it there. The seller can take that money and run, ...... or they can keep on doing business.

Who makes it possible to "stay alive"? Why the customers of course!. They pay for EVERYTHING!