Seth Godin wrote about the state of DTC advertising and why it always leads to ruin.
His solution is simple, though not easy:
Your (current) customers need to bring you your (new) customers.
Eric Davis
Refine your automated marketing campaigns with better timing
When building any automated marketing campaign that sends messages over time, you need to know how long the campaign should be and how long to delay the messages. The Customer Purchase Latency metrics calculated by Repeat Customer Insights can help you figure out that timing.