1. Extended Decision-Making occurs when consumers are buying a rather expensive product.
2. You spend some time doing in-depth research about the product, before making your final purchase decision.
3. Since it is a high-end product, the economic risk of buying it is much higher than if you would buy an average product.
4. Simply put, you would not necessarily purchase the item on a daily basis.
5. Therefore you spend more time evaluating the looks and the use of the product, and how you will feel about it after purchasing it.
6. You might even ask your family and friends for advice, or read product reviews online before committing to investing.

There are different consumer buying behaviours, which can be categorised in the following 4 :

1. Extended Decision-Making
2. Limited Decision-Making
3. Habitual Buying Behavior
4. Variety-Seeking Buying Behavior