Google study proves no matter what your organic strategy is, you still need PPC

Google released a Search Ads Pause research study which showed that 89% of the clicks from search ads are incremental, i.e., 89% of the visits to the advertiser’s site from ad-clicks are not replaced by organic clicks when the search ads are paused.

Just recently they found that on average, 50% of the ad clicks that occur with a top rank organic result are incremental.