There are many aspects of a product that make it valuable to its target market. First, you need to understand the buying habits of the consumer. Typically a product is designed based on a need. Some consumers will pay anything for a product. However, they may choose a particular brand because it's more reliable, durable, tastes better... the possibilities are endless. In our rapidly evolving marketplace, you would need to analyze the product against its competitors. How are they doing in sales? What do the competitors have that they don't? How do their prices compare?