Facebook ads work on an auction system, meaning advertisers compete for the same audience spaces. As more businesses join the platform and start running ads, the competition for attention goes up and so does the price. Facebook does not always explain this clearly, so it feels sudden when your budget stops going as far as it used to. Seasonal events like holidays also push prices higher because everyone is advertising at the same time. So what do you think advertisers should do when the cost keeps climbing without better results to show for it?