AWS lambda is super cheap at tiny scale. But if you get into any real constant load, it is way more expensive than a VM. The other drawback of lambda is the fl

AWS lambda is super cheap at tiny scale. But if you get into any real constant load, it is way more expensive than a VM. The other drawback of lambda is the flip side of having the server opaquely managed by AWS. It is so opaque you can't debug anything. At one startup we had a weird connectivity issue from lambda to RDS but it was impossible to diagnose given the lack of access so it went on for months. Had it been running in a VM, I could've diagnosed that within an hour with tcpdump and bpf et.al.