Services like Google Adwords and Facebook Ads offer us the chance to target our advertisements at a specific user base. You can target people that are in certain countries, that have certain interests or are a certain age. This makes it a lot cheaper and makes your advertisement a lot more efficient as it is not wasted on people that may not be interested in your product. But is this actually beneficial? What about potential customers that are outside of your target market? Could you be damaging your potential sales by only targeting a certain customer demographic? It may be better to just use mass advertising as you may be able to get some sales from customers who you may not have thought would have bought your product. What do you guys think?