When we get something we want badly, the wanting diminishes, which is great news until the next want comes along. This puts us into a constant state of want, need, lust, greed and most of the seven deadly sins... The other problem is because we never really feel like we get what we want because there's always someone who has more, we live in a constant state of wanting. This need for success is embedded in our culture. If we don't reach these self- imposed goals, we may experience a sense of worthlessness. In my opinion this is why so many people over-shop.