The knowledge of the performance of an ad will inform a business on how to proceed. For an ad campaign that is performing well, it is easy to invest more in it with just a click. But for an ad that is not delivering as expected, it can be adjusted accordingly or stopped altogether with ease.
In traditional marketing, it is more rigid as a mountain of paperwork must be signed and in most cases, these agreements are on a long or medium-term basis. So even if a campaign is not performing as hoped, subscribers will still have to wait for the expiration of the agreed period.