My company is hardly a startup (16 years old), and we are in the process of converting a few of our processes over to Lambda and API Gateway (via luigi), with g

My company is hardly a startup (16 years old), and we are in the process of converting a few of our processes over to Lambda and API Gateway (via luigi), with good success. I wouldn't agree with the "You're locked in to this vendor" statement. Our Lambda code is just Python Flask apps and our "if Lambda is down" plan is to run the services from our data center via uwsgi serving the Flask apps. GCE also can easily serve Flask apps, but the environment there is weird and I spent tons of time struggling with things that worked in my GCE dev environment to work in the real GCE. I had high hopes for GCE but it was a total pain in the butt. As far as moving your bare metal servers around to whatever DC... Enterprises don't easily move data centers. Minimum to move our couple of Lambda apps, deployed on uwsgi, is probably a contract for 2 years at a grand a month, and $30K worth of hardware. We wouldn't take down one data center until another is fully up and running and proven.