Kalesh Kaladharan

I've tried googling it, but I am still confused and would like a real conversation on the topic with someone experienced. Most of the products I have seen are hunted by the makers itself. 1. What benefit does a product get, if it is hunted by someone other than the maker? 2. How can I hunt a product? 3. One of the article I read says, it doesn't make any real difference if the product is hunted by the maker itself or someone else. Is that so? If it doesn't, then what is the purpose of having a hunter for a product? This is all the questions I can think of now, with absolutely no idea of what hunting actually is. Please enlighten me