Food shopping

I went food shopping the other day and found some frozen dinners that I really enjoy (no excuses, I haven't been cooking much lately). I practically emptied the store out. I'm guessing that when inventory was taken next, the manager of the store ordered more (when next I returned there were even more). What I didn't see on the shelves were the frozen dinners that nobody cares for. Which ones? I don't know. They died out long ago, when the manager bought them, and they hung around for weeks without a taker. How do I know? I'm theorizing. Work with me.

Let's contrast this with our political system.