What Best protects a firm from being forced to sell its product at an unfairly low price?

Numerous number of consumers or buyers protects a firm from being forced to sell its products at an unfairly low price. This is one of the important reasons that a firm can sell its product at a good price. If the competition increases, then the firm has to beat the competition to get the required price, otherwise it might have to lower its price to hold on to its consumers.