What will you gain?
1 Million is a huge number, and getting these many followers, fans or views within a few days not only helps you get noticed but also helps you increase your authority.
If people see a page,video or business with these many fans they simply assume that the business is a huge international corpration or the person is a celebrity.
Thats not all, getting these fans will also help you get featured on the hot/happening section of many social media sites like twitter, youtube , facebook etc. This will in turn help you gain a huge number of real followers.