[beachstartup]

i run an infrastructure startup.

the rule of thumb is once you hit $20-99k/month, you can cut your AWS bill in half somewhere else. sites in this phase generally only use about 20% of the features of aws.

the other rule of thumb is once you hit six figures/month, you're probably spending someone else's money, are locked in to their stack, or just don't really care to begin with, so there's no point in telling/selling you otherwise.