Lambda doesn't charge for idle time or capacity, for example. Depending on your usage patterns and availability requirements, you may have a high cost in idle waste when using servers.
But I think where Lambda really shines is removing time from infra setup, maintenance, etc. These are hidden costs and, even when accounted for, frequently underestimated.
If you need even a part time DevOps or SRE engineer to make sure you'll keep things running smooth or will recover fast from a disaster, their salary alone already pays for shitloads of Lambda invocation and compute time.
Lambda doesn't charge for idle time or capacity, for example. Depending on your usage patterns and availability requirements, you may have a high cost in idle waste when using servers.
But I think where Lambda really shines is removing time from infra setup, maintenance, etc. These are hidden costs and, even when accounted for, frequently underestimated.
If you need even a part time DevOps or SRE engineer to make sure you'll keep things running smooth or will recover fast from a disaster, their salary alone already pays for shitloads of Lambda invocation and compute time.