You're probably right in the sense that few people actually go for the absolute necessity only at the lowest price they can find even without any alcohol. If y

You're probably right in the sense that few people actually go for the absolute necessity only at the lowest price they can find even without any alcohol. If you look at a typical trolley I'd wager that most people/families could cut its price quite a bit and still be fed satisfactorily if they absolutely had no choice.