This document argues that investing in a full digital marketing funnel, including upper and lower funnel tactics, yields better results than using just lower funnel tactics alone. It summarizes an analysis of campaign data from multiple DSPs that showed upper funnel tactics like prospecting positively influenced lower funnel strategies like remarketing by driving more users and clicks into the remarketing pool, increasing reach and conversion rates. Specifically, campaigns using a full funnel approach saw 64-110% higher conversion rates than remarketing alone. The document concludes that combining upper and lower funnel tactics increases conversion volumes through incremental conversions.