I honestly don't see the benefit of this. If I understand it correctly, a bunch of people watch ads, causing the price to go down. But only one person gets the

I honestly don't see the benefit of this. If I understand it correctly, a bunch of people watch ads, causing the price to go down. But only one person gets the discounted price, and everyone else who sat there watching ads gets nothing? In other words, the majority of people using the site get no benefit.