Some customers even expect for an improve of our quality. They may feel bored if there is no improvement at all, they may judge we have no innovation. But this type of customers mostly come from the upper-middle class people. But if the most customers come from the low class people, they only focus on price. As long as it is cheap enough, they will never complain.
Business owe it to their customers to give them the best products because if they don't, they'll go and find it in another place. The business world is very competitive therefore our product should always be at its best all the time. When we don't take our customers feedback serious we lose interest from not just the customers but also others that they are going to tell and others those individuals they told are going to tell too, customers feedback should always be treated with all seriousness.
Poor customer management is also a reason why small scale business fail, the product might be good, the price also fair but when a business has poor customer management, they'll keep losing customers until they have nobody left to buy their products and they'll have to quit.