How do I respond to the discussion below?

Product- dominance (PD)approach and the service- dominant (SD)approach are ways to have product of service known to the public. PD is an approach that focuses on low pricing and mass marketing, which is good, because some people rely so much on cheap things, basically the cheaper the better for them. The SD approach focuses on the whole picture of what brings value to the people. They focus on having the product or service be at it's absolute best, while having a negotiable price for customers. Quantity vs quantity is another way to look at it.