Retargeting typically has very favorable CPC (cost per click) and other "ROI" metrics that marketing managers use to determine the success of their advertising

Retargeting typically has very favorable CPC (cost per click) and other "ROI" metrics that marketing managers use to determine the success of their advertising campaigns. This may conceivably be because having previously visited a website is a stronger indicator of interest than say, male 18-30 making $XYZ/yr. It may also be purely coincidental and garbage. You were going to buy anyway/you already bought it. The truth most often lies somewhere in-between. The statistic rigor of the people purchasing these ads is not always the highest. The companies offering these solutions typically have very little reason to not sell as many ads as possible, as long as the metrics look good. In the end consumers are blasted with stalking ads that they don't want and the entire industry is shooting itself in the foot