Serverless vs Traditional Servers: The Reality of Event-Driven Backends

Choosing between serverless and traditional servers usually comes down to deciding how much infrastructure management you want to handle versus resource efficiency. Serverless (like AWS Lambda) is great because it gives you automatic scaling and you don't pay anything when your code isn't running.

But putting an entire backend on serverless has its own drawbacks. If your application has constant, high traffic, serverless bills can add up quickly compared to just renting a standard server. Plus, you have to deal with cold-start delays, vendor lock-in, and annoying local testing setups.

On the other hand, traditional setups (like Docker or standard cloud servers) require manual maintenance and scaling rules, but they give you predictable monthly costs, full control over your environment, and normal debugging workflows.

This topic explores whether serverless is best kept for small, background tasks, or if it's actually ready to run full-scale production backends by default.