I probably click on 1 ad a month completely by mistake, and maybe another one just from curiosity, and then from searching something I have a good idea of where it is but I'm lazy to look it up, and when I see the link on top (sponsored) I click it just for kicks...

I'm probably not the average user, but if you multiply that by a few million people, it can def. add up

When was the last time you bought something after clicking on a google ad? Or at least, when did you bookmark a website you got to through AdSense? Two simple metrics that I bet most people have never done through googads