diberry - 6:55 pm on Oct 11, 2013 (gmt 0)
jecasc, we also had a much higher CPM/CPC back in the days before behavioral targeting/tracking. That may be coincidence, of course, but I often wonder if advertisers assume they have a complete picture when in fact they don't - that is, you may search on your phone but buy from your desktop, or search on your desktop but then buy at a store, etc. Tracking can't tell them that.
Also friends have complained to me that it's creepy if you're searching for dog food and then you go to a site about fashion and blam, there are dog food ads all over the fashion site. So I have to assume at least some of my site visitors are similarly creeped out, and that's not the negative experience I want them to have.
Unfortunately, advertisers pay even less for non-tracked ads than they do for tracked ones, so I put up with the tracking. But there is a part of me that thinks if tracking was legislated away, it might ultimately work out better for my business.