Value for the user. One Facebook &quot;like&quot; has various estimations of a price and some of them were quite hight (even going to thousands of dollars). A quickly found link from 2013 resumes some estimates: <a href="http:&#x2F;&#x2F;www.businessinsider.com&#x2F;what-is-a-facebook-like-actually-worth-in-dollars-2013-3?op=1&amp;IR=T" rel="nofollow">http:&#x2F;&#x2F;www.businessinsider.com&#x2F;what-is-a-facebook-like-actua...</a>