Lol, bro. This is so easy to install. Even a complete noob can do it. What you are missing here is that this scrupt is used by thousands of webmasters and whoever installs it has to write their own meta data to their videos (about 7k videos) to avoid duplicate content... Will you write 7k unique titles and descriptions for those $50?
EDIT:
And btw you are asking $ for something these sponsors actually offer for free...