[danpalmer]

> the pricing seems to scale well up to 100K users

I'm not sure I agree. This isn't really an infrastructure cost, it's a direct COGS (cost of goods sold) cost, and hits the service's margin. For a SaaS business charging $10-1000 per month per user it's fine.

For a retail business though I think this could be prohibitively expensive. Let's say you have a 10% conversion rate and $100 a year spend for customers, that's actually only $0.83 a month per active user. This is a 6% margin hit.

Sure, maybe in retail you often don't need non-customers to log in, but maybe you do. Or maybe your active users correlate much more strongly with your paying users, but maybe they don't. Content-led, email newsletter style business could struggle with this pricing.

[pcthrowaway]

You would have to have all of your users (converting and non-converting) still logging in / using the service monthly for this math to work out, as they charge by monthly active users.. I'm sure this happens somewhere, and that's probably not the most ideal place for Clerk.