I was in university for ten years, so I have more than a degree in Economics. In my business degree, I learned about Satisfiers and Dissatisfiers.

A satisfier if something that has a limit on how much that you want to consume. If you are thirsty, a glass of water is precious to you. After you consume ten glasses of water, you might not want to buy the 11th glass. There is a limit on the satisfaction that you have for many products. As a consequence, satisfiers are perfect for motivating people. If you offer free coffee in the workplace, people are happy because they can drink until they have enough, and the following day their satisfaction level resets.

A dissatisfier is just the opposite. Money is a poor motivator. As a person who wants to make money, you must think I am mad. You might think that if you make more money at work, you would be happier. How much money will make you happy. If you were making $100 per hour, would you accept $1.00 more? If you were making $101 per hour, would you accept $1.00 more? In the long run, you will never be satisfied. More money can only make you less dissatisfied in the short run. This is where motivation and economics intersect. Dissatisfaction is the driving force behind insatiability.

Moving on to another one of my majors, psychology, they have an excellent model called Maslow's Hierarchy of Needs.

People must satisfy the lower levels of needs before moving on to higher levels. That is why wives should never put their husbands on a diet. There is a saying that the way to a man's heart is through his stomach. (There is also another need missing from the Physiological needs. That is touch or touching. Grooming behaviour in mammals leads to stress reduction.)

Working under this model, people transcend the concept of being insatiable. Once you fulfil one need, you move on to another and then move up the levels until you achieve Self-Actualization. Psychological aberrations occur when one becomes fixed at a particular level.