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
2. People's ad blindness depends, at least in part, on the situation. Some sites hide context sensitive ads for registered/regular users, because they know that such users aren't likely to click on them. The users who are most likely to click on them are people who are actively searching for information, such as people who arrived by clicking on a search result. If they don't find the information they are looking for, they are going to move on. If the ad displayed is relevant, it presents an attractive place to move on to.
For my part, I usually completely ignore all the paid placements on the Google search results, but when I'm shopping for something, I'll click on the ads if people seem to have what I'm looking for.
Its not just the stupid-looking ads but my privacy is also in their hands every time any Google Ad shows up on any website. I am assuming that you guys know how Google Ads work!
I don't think they will be able to make much money out of it in coming years. And,users will definitely rise up against Google to regain their privacy.