The critical lesson from failed products is that companies need to do their research when creating new products or services and consider all relevant factors before launching them into the market. Additionally, it’s essential to understand customer needs and price products realistically for them to become viable options for consumers. Lastly, listening to customer feedback is essential and ensuring that changes do not negatively affect their experience with the product or service. With this in mind, businesses can avoid costly mistakes when launching new products or services.