Cost-optimization has always been a central notion in revenue management. That being said, the pandemic brought renewed attention to the topic. Today, more than ever, proper cost control is crucial to navigate these difficult waters and prepare for the "new normal." Whether we like it or not, every single decision revenue managers take on a daily basis, has an impact on the bottom line, meaning that revenue management is not only about optimizing the revenue streams, but also about increasing profitability. Favoring the distribution channels with the highest profit has become imperative in our industry. But how can hotels calculate the cost-per-acquisition of each channel? What should be taken into consideration? And how can this analysis influence one's distribution decisions?