> It's nice for toy projects, but it's a money sink for anything serious, at least from my experience.

This is really not my experience with Cloud Run at all. We've found it to actually be quite cost effective for a lot of different types of systems. For example, we ended up helping a customer migrate a ~$5B/year ecommerce platform onto it (mostly Java/Spring and Typescript services). We originally told them they should target GKE but they were adamant about serverless and it ended up being a perfect fit. They were paying like $5k/mo which is absurdly cheap for a platform generating that kind of revenue.

I guess it depends on the nature of each workload, but for businesses that tend to "follow the sun" I've found it to be a great solution, especially when you consider how little operations overhead there is with it.