Effective advertising can attract consumers to try a product, even if it is subpar. However, once someone has experienced a product that they found unsatisfactory, no amount of marketing can persuade them to make a repeat purchase. This highlights the importance of maintaining quality and customer satisfaction in a competitive market.

In his book, "The Copywriter's Handbook," Robert W. Bly emphasizes that clever marketing strategies might lure customers initially, but true success hinges on delivering a positive experience. If a product fails to meet expectations, no clever ad will change the consumer’s perception or encourage them to return to it.