Why would an average user use such service? I was thinking about creating such "internet recommendation engine" so to speak but as my hypothetical project was p

Why would an average user use such service? I was thinking about creating such "internet recommendation engine" so to speak but as my hypothetical project was progressing I realized that it started looking more and more like internet search engine as and when I started adding more advanced features. But looking from costs point of view it is cheaper to create internet recommendation engine than internet search engine.