Exactly. They need to be able to pull some rough estimate off in near-realtime. Customers won't care if the rough estimate is off by a few bucks, but "you think

Exactly. They need to be able to pull some rough estimate off in near-realtime. Customers won't care if the rough estimate is off by a few bucks, but "you think you're on a free tier account but you just spun up a thing that costs $5 an hour" needs to be flagged in-flight.