Most weeks, the relationship between scale and acquisition cost is a tendency with exceptions. Week 33 is the uncommon case with no exceptions at the edges: the largest run was the cheapest to fill and the most valuable per attendee, and the smallest run was the most expensive to fill and the least valuable. Clean weeks are worth studying precisely because they are rare.

The week closed at 19,279 tickets and $1,053,068.70 in total revenue, against $122,755.00 in media investment. Blended CAC landed at $6.37; blended ROAS at 8.58x. Volume was the lowest of the last six weeks, down almost 5,000 tickets on the prior week, and the blended acquisition rate rose with it. The numbers that get quoted look softer. The structure underneath looks unusually orderly.

Across the 7 runs, CAC ranged from $4.78 to $9.95, a little over 2x. The top held: the largest run, 4,572 tickets, was the cheapest. The bottom held too: the smallest, 1,085 tickets, paid $9.95, more than $2.50 above anything else. The middle is flat rather than sloped. Four runs between 2,310 and 2,730 tickets sit anywhere from $5.25 to $7.37, so volume explains the extremes far better than it explains the pack.

Net revenue per attendee is where the week is most striking. The spread ran from $31.43 to $60.55, nearly double, and both ends lined up with CAC. The cheapest run to acquire also returned the most per person, more than $13 ahead of the next best, on the back of a per-person spend far above the rest of the field. The most expensive run returned the least. When acquisition cost and yield move together like this, the gap between the best and the worst run does not add up, it compounds.

7 runs again next week. One clean week proves little; the next one says whether it was signal.