I had lunch with one well respected publishing CEO last week, who told me that his single largest advertiser was Smuckers. The peanut butter maker. Smuckers is a real business, supporting real people, making real stuff. They know their business better than anyone else. And every day of every month of every quarter, they seem to decide that they need advertising.
Once you start thinking about it that way, you start to understand why advertising is one of the oldest industries in the world.