> Also worked in ad tech. There were some types of customers that cared about performance, but the largest were typically agencies and all they cared about was

> Also worked in ad tech. There were some types of customers that cared about performance, but the largest were typically agencies and all they cared about was spending the budget they were given. Large companies call it "brand" spending. Which is to say they're spending to maintain brand awareness. Measuring ROI would call the practice into question.