How do you evaluate opportunity cost of influencer spend vs other channels?
Quick answer
The finance-proof version compares margins, not averages and prices the assets only one side produces. Marginal comparison first: the question is never whether creators beat paid search overall but what the next unit of budget returns in each channel from where you stand now and mature channels sit on flatter curves, your fifth paid-search dollar buys the same clicks while a young creator program is frequently still on its steep early segment. Run both channels through the same yardstick, cost per outcome your business counts, so the comparison is one table rather than two dialects. Then price the asymmetries: creator spend produces reusable content, borrowed trust and audience relationships that persist after the campaign, none of which a click auction leaves behind, while paid channels offer precision and instant scale creators cannot match. The honest evaluation states both. The trap in the finance framing is comparing a mature channel average against a young channel average, which structurally flatters the incumbent. Margins at the current position, one yardstick and the leave-behinds priced in. That survives the meeting because it is how finance already thinks. Pull the creator-side outcome data from analytics, keep the per campaign economics filed in the database so the marginal curve is real rather than argued and use creator search to show finance the untapped pool the next dollar would reach.
Finance keeps asking why this budget is not in paid search instead. How do you evaluate opportunity cost of influencer spend vs other channels in a way that survives that meeting?