You are right about this, it's a thing to market our product/service and attract more sales, but it is another to keep them coming for more. This is why the quality of the product and service you render must be good, but still, my conclusion was how I view them in the hierarchy of making the company successful, regardless, what you make your customers feel about your company matters most in long-term relationship, so don't sell bad reputation.
Absolutely right, But, Actually that is very difficult to do many entrepreneurs and on average they like to speculate, initially come with a good concept, pure and very maintain performance. slowly they themselves change the menu to be ordinary.
Actually the more products there are, the more choices there will be for users to choose which one is worth buying because the basic principle is liking and being interested in the products offered.