I forgot to do something and basically ended my Google Advertising spend. I haven't missed it in the least. I don't know if I would have done better without it, but an increasing number of people still find my website and phone number even though they are no longer clicking on the ad that Google provided when they searched my exact company name, costing me the majority of my ad spend.
As I understand it ad spend is good if you want attention right now. In the long term organic traffic is cheaper and more desirable. In addition ads can be good for exploration.
So it's only natural that after some time organic traffic exceeds paid traffic.