Trying to please a large target group is more difficult to do in the marketplace. You have more competition. You have to be an expert on more things. It is easier to concentrate on a niche market. Your marketing plan is much easier. You develop connections with others and your marketing plan is easier to manage. Using affiliate niche marketing cuts your time in half to get a website up and running, because you do not have to develop the product, you choose from tens of thousands.