Example: people will look to the shoe with blue and black on it as apposed to the shoe with just plain white. This shoes the difference in physical characteristics can make a product sell.
Another example of location is that a convenience store in the desert can charge more for a bottle of water than a convenience store in the city because it is the only store within miles.
Advertising can create a higher demand for a product by giving it to a celebrity and having them say good things about it, people will purchase the item thinking it will make them more like this celebrity.