Earlier quoted context omitted.
> Why is any of this your business? Because I am the person paying for the thing?
But why do you care what their costs are? What will you do with that information? Either the product is worth it for what you need or it isn’t.
Generally speaking, people care about saving more of their money, they care much less about how much money the company they are purchasing goods or services for is able to retain by providing less for the same (or more) price.