Most pricing decisions in SaaS happen like this: the team looks at what the market leader is doing, what a recently successful competitor raised money with, or what the head of sales is comfortable explaining on a call. Then they pick that model.

That process produces pricing that feels defensible in a board meeting. It rarely produces pricing that matches the product's actual expansion mechanics.

Pricing is not a marketing decision. It is a structural decision that determines how your annual recurring revenue (ARR) grows inside existing accounts - or whether it grows at all.

Why Pricing Is Architecture, Not Marketing

Your pricing model determines three structural things that no amount of messaging work can override:

Expansion mechanic - the specific mechanism by which a customer's spend grows over time

Net dollar retention (NDR) ceiling - the mathematical maximum your existing-customer revenue can reach given the model

Customer acquisition cost (CAC) payback structure - how quickly a new customer…