For many businesses, upselling is their lifeline. A lot of the companies even end up selling certain products or services at a loss, as long as they upsell in the future. Now, there are certain companies and businesses that include additional amenities with their products or services, and that too at a reasonable price. However, how can one differentiate between the ones who are fairly priced and the ones who are just taking advantage of the customer’s wallet? Keep on reading to find out.