1. Think of a very expensive product that you aspire to have. Assuming that you do not have the budget for this, think of a cheaper alternative. Now, imagine buying this cheaper alternative and having it with you right now. Are you happy with it? Are you contented with it?
2. Imagine finally having the budget for buying the original expensive item that you wanted. Will you still buy it even if you already have the cheaper substitute? What needs are you actually satisfying?