The biggest limitation of display advertising networks is that they often reach people who are not ready to engage, making it harder to achieve strong results. Even with detailed targeting, many users ignore banner ads because they have learned to tune them out. Tracking impressions and clicks helps measure performance, but those numbers do not always reflect genuine interest or conversions. Studying audience behavior, placement quality, and engagement trends can reveal which ads attract attention and which are easily overlooked. These insights help marketers refine creative designs, improve targeting, and place ads where they are more relevant.