@neilpatel: How much more expensive is marketing getting over time? We had 19 established companies share their CAC costs over the last 10 years and asked them to share what they see going forward for 2026. The results were interesting. Of course, marketing is getting more expensive, but the only way to make the numbers work is to boost your customers' lifetime value. Without that and investing in conversion rate optimization, marketing won’t work at scale for most businesses in a profitable way.