Myth: lowest CPM source wins
The floor-price chasers have it backwards.
— Heard from two media buyers running the same offer: the sub-$0.30 pop source converted at half the rate of one priced 3x higher.
— Our read: rock-bottom CPM usually means recycled or bot-padded inventory the source can't sell at rate card.
Real cost is CPA after you scrub the junk, not the buy price. A 'cheap' source that burns 60% of spend on non-converting frames is the expensive one.
— confidence: high
Pop Wire
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