[southpolesteve]

Define horrific. The traffic that generates those calls also generates lots of revenue :) It is also extremely spikey. This is a big win for Lambda since we are only pay for what we need and don't have to worry about scaling EC2 up and down to meet demand.

I have one hard example I can share. We had a node service that was running on ec2 and cost ~$2500/mo. Moved the code directly over to lambda. Now ~$400/mo.

Quantifying other costs is a bit harder but do you have a DevOps person on your team? Or multiple people? How much do they get paid?