What a customer actually costs: CAC by channel for a one-person AI product

Every channel has a number, and almost every published number is sold to you by someone who wants you to pick their channel. The grounded figures run near $800 a customer for paid search, about $205 for SEO, and close to zero cash for owned channels, and whatever any of them buys an AI product churns about 30% faster. The answer for a one-person AI product is the channel your own time can run.