It seems so strange to me that there is such an ever increasing push to get people to click ads when I can't tell you a single person I know that ever actually clicks one on purpose. If I see an ad for something I just search it instead because I don't trust ads..
Except for one time years ago when I saw an ad on my own site for a drawing tablet and getting my account suspended for cheating even though I actually bought the tablet. Decided then I'm never gonna do ads on any of my sites.
I think the advertisers care more about about manipulating companies to buy ads than actually increasing that companies sales.