There is nothing wrong with being proud of what you’re selling, especially since it can help convey confidence. However, if the pride turns into arrogance, you’ll lose sales because people will find you difficult to work with. Find the appropriate balance.
I can’t underestimate the power of this one. When people are proud, it comes across as confidence and the customer, in turn, will become more confident. The trick is to avoid crossing the fine line of becoming arrogant. Arrogant people tend to be bad listeners and there’s nothing that will cost a salesperson more money than not listening to the customer.