Let me guess how this goes.
You launch CTV.
The report comes in.
Someone sees the CPM.
And the room tightens up.
“Why are we paying $35?”
“We can get impressions for half that.”
“This feels expensive.”
I’ve seen that reaction more times than I can count.
And here’s the thing. It’s understandable. But it’s usually the wrong starting point.
CPM Is Just the Entry Ticket
CPM tells you what you paid to get on the screen.
It does not tell you:
What kind of attention you got
Who you actually reached
Whether you reached anyone new
Or what changed afterward
In social, an impression can mean someone scrolled past your ad in half a second.
In CTV, the ad fills the screen. Sound is on. It plays through. It’s a very different exposure.
So when someone compares a $35 CTV CPM to a $12 social CPM, they’re comparing two completely different things and pretending they’re equal.
They’re not.
The Real Question Is What Moved
When I look at a CTV campaign, I don’t start with CPM.
I start with, “Did anything change?”
Did branded search tick up?
Did direct traffic trend differently?
Did paid social get more efficient?
Did blended CPA improve across channels?
If those numbers move in the right direction, the CPM conversation usually calms down fast.
If nothing changes, then yes, we have a problem. But it’s rarely just the CPM.
It’s usually:
Creative that wasn’t built for TV
Frequency that got away from us
An audience that was already saturated elsewhere
Or a measurement window that was too short
Why CTV Looks Bad in a Vacuum
Here’s what trips up a lot of teams.
CTV doesn’t behave like a click machine.
It influences. It reinforces. It primes. It makes other channels work harder.
If you isolate it and demand immediate, last-click performance, it often looks inefficient.
If you look at the system holistically, it can look very different.
That doesn’t mean CTV always works. It means you have to judge it by the right criteria.
The Shift That Changes the Conversation
Instead of asking:
“Is this CPM too high?”
Try asking:
“Are we willing to pay this to show up on the biggest screen in the house, in a lean-back environment, with full attention?”
That’s the actual decision being made.
Once you frame it that way, the discussion gets more strategic and less reactive.
Bottom Line
CPM is the first number everyone sees.
It’s rarely the number that determines whether CTV is worth it.
If you’re running CTV, don’t let the sticker shock drive the conversation.
Let the outcomes do that.