UPDATED - AFTER RESPONSE FROM FACEBOOK - SEE BOTTOM OF POST
Caveat Emptor - Buyer Beware.
If you're buying clicks online it pays (literally) to make sure you know what you are buying.
And when it comes to facebook, I thought that I needed to pay most attention to those companies looking to sell me hundreds of devoted followers for pennies... but it turns out, I have to worry more about facebook themselves.
We recently launched a small campaign for a client using the "video" option rather than a photograph. It's an option facebook offer and it whilst it is more of an animated slideshow than a video, it seemed like a nice way to present the client's product range.
Alongside the text and images we chose to pay for "website clicks". And then we sat back to watch the traffic.