I personally also do this, but someone has to click on these ads.. otherwise they don't make senseI'll tell you from my own experience. When I search for something in Google, I usually neglect the ad output, but if the ad is not 100% relevant to my query(which is extremely rare, since people are too lazy to properly configure Google ads.), I always view organic output up to 3-6 positions. In fact, it all depends on the request.