Obviously, find out all you can about the quality of the product you're considering. If a certain brand is not up to par, buy another brand. If no company makes a satisfactory product, live without it. A case in point is Volkswagen. Market pressure does work.
Salespeople pride themselves on being able to sell anything to anybody.
The consumer , however, may not need the product which is being marketed. Look, for example, at those really fun machines which you can buy to sort coins into rolls. Neither banks nor stores want coins that have been wrapped by consumers. Banks want to sort and wrap their own, and stores want theirs only from banks. Usefulness is, therefore, pretty limited.