A quick way to establish credibility and build a relationship is to offer something in your original ad that you instantly deliver in your landing page. (entrepreneur.com)
So if your original ad sets are completely underperforming across the board, it can be a better strategy to start a whole new campaign rather than tweaking your existing ads. (blog.bufferapp.com)
The revenue from these original ad spots helped the company become profitable within its first year. (geektime.com)