Kevin Bell

ROI of a beach banner ad? Let’s do the math 🧵

Twitter Post


Haven’t seen one of these in a while and it got me thinking… is this worth it from a marketing standpoint?

Like @mhp_guy with his billboard, what’s the ROI of this?

Here’s my deep dive

đź§µ

Haven’t seen one of these in a while and it got me thinking… is this worth it from a marketing standpoint?

Like @mhp_guy with his billboard, what’s the ROI of this?

Here’s my deep dive

đź§µ pic.twitter.com/bT2Cp17abt

— Kevin Bell 🍩 (@kevinasrx) August 18, 2025

1) Research shows in SoCal, you’re looking at about 400600 per hour of flight time.

Maybe more by a beach like this.

2) custom banner printing from 5002000.

Audible might have spent 15002500 on this ad here

3) a crowded beach on the weekend like this might have 50k-100k eyeballs.Conservatively 70k… but probably like 10-20% paying attention

4) this is pretty top of funnel stuff. I’m going to guess MAYBE 1% direct response rate. Maybe…

5) now let’s do some math…

Let’s say Audible’s free trial paid conversion rate is 30%…

and the paid subscription LTV is ~120–150 (assuming $15/mo, average 8–10 months retention).

From 10,000 exposures:

If the flight cost $2,000 that’s $666 CAC per paying customer.

That’s not great…

compared to digital ads (Audible might pay 50–150 CAC online).

BUT- if it’s 50 signups instead of 10?

CAC drops to ~$133, which is actually pretty good.

Here’s my conclusion… for what it’s worth

This is good for big brands… not direct CAC. Audible has the money to spend

For small businesses- almost never worth it. Sorry.