Like everything, PPC does have a few drawbacks you will have to consider before starting a paid campaign. First, PPC requires a time investment. It's not that you can set up a campaign and leave it. Second, to set up a PPC campaign, you need skills. Without practice, your PPC campaign may not be as effective as you expect it. And finally, if you aren't constantly monitoring your PPC campaigns, costs may add up quickly, and you risk wasting your budget.