I Spent $6M on Google Ads Last Year
I tried Adwords for search again recently after several years.  There was a decent number of clicks, and the cost per "action" seemed very reasonable, where for me, the action is clicking on the download link from the landing page to download the installer for our game.  The only problem is that tracking the IP's, 90% of the traffic from Adwords that downloaded the installer never actually ran the installer.  Organic traffic usually has much more than 50% of the people who download it, run it.  Is it a bunch of robots driving clicks and then clicking randomly on links on the landing page?  Seems really suspicious.