How do people express economic value?

People express economic value based on their preferences for certain products in the market. They choose products depending on what they want, depending on various factors like income and duration. Most people choose products in the market in accordance with the cost of the product at a certain period. When the cost is high, people tend to retrieve from that product and opt for its substitutes. Some may prefer the high-cost products with the notion that highly-priced products possess the best quality, while low-cost prices have lower quality. This may sometimes depend on the customers' financial worth.