Sort of, but two things add up - lots of little services (I don't like the microservices word), but we do make small services for the workloads that make sense

Sort of, but two things add up - lots of little services (I don't like the microservices word), but we do make small services for the workloads that make sense to run and maintain independently. The other is burst, we run a business where customers send us a couple hundred thousand things to do just once a week or once a day. And of course we don't know exactly when the orders will come in. Much easier to let the lambdas run than have large running servers waiting. Autoscaling is possible, of course, but laggy autoscaling won't work, and aggressive autoscaling is basically lambda.