Certainly this seems like the way it should work. In order for it to actually work like this it would require the marketers to actually understand retargeting r

Certainly this seems like the way it should work. In order for it to actually work like this it would require the marketers to actually understand retargeting rather than believing the hype spread by ad networks, and it would require the inventory to be delivered through systems which could provide adequate tracking. Click-though is often not the expected success criteria for these ads though, instead they depend on overwhelming you with reminders until you crack. This has two consequences, the first is that successful campaigns are absolutely designed to annoy you and not give up at a point which is decent, and secondly the tracking becomes extremely weak, with high rates of inferred success where the retargeting ads may not have had a positive influence at all.