# The Ad Buying Math Most Subscription Brands Get Wrong

Page: https://stenobird.com/podcast/subscription-prescription-weekly-doses-to-boost-ecommerce-revenue-6583318/the-ad-buying-math-most-subscription-brands-get-wrong
Text version: https://stenobird.com/podcast/subscription-prescription-weekly-doses-to-boost-ecommerce-revenue-6583318/the-ad-buying-math-most-subscription-brands-get-wrong.md
Podcast: [Subscription Prescription | Weekly Doses to Boost Ecommerce Revenue](https://stenobird.com/podcast/subscription-prescription-weekly-doses-to-boost-ecommerce-revenue-6583318)
Published: 2026-05-19T10:00:03+00:00
Episode link: https://www.spreaker.com/episode/the-ad-buying-math-most-subscription-brands-get-wrong--71997937
Audio file: https://api.spreaker.com/download/episode/71997937/matt_and_trevor_final_64.mp3
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JSON: https://stenobird.com/v1/public/podcasts/subscription-prescription-weekly-doses-to-boost-ecommerce-revenue-6583318/episodes/the-ad-buying-math-most-subscription-brands-get-wrong
Duration seconds: 2669

## Resource

Most subscription brands are setting a ROAS target and calling it a strategy. Trevor Crump, co-founder of Bestie Media, breaks down why that's leaving serious growth on the table - and what to do instead. What we cover: Why ROAS constraints strangle your Meta spend before you ever hit your ceiling How to calculate what a subscriber is actually worth - and use that to make buying decisions Lead vs. lag metrics: what ad buyers track vs. what actually moves the business The cash flow math founders miss when modeling customer acquisition Why discount-based offers produce lower-value customers (and what to do instead) How creative has become one of the most important targeting tools on Meta Guest: Trevor Crump, Co-Founder & CEO of Bestie Media LinkedIn: https://www.linkedin.com/in/trevorcrump/ Website: [https://www.bestiemedia.co/ Podcast: The Unstoppable Marketer Subscribe to our newsletter for weekly doses just like this one: https://newsletter.thesubscriptiondoc.com

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## Transcript

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