Just have a look at the list of AWS services and you'll find over a hundred of examples. But when you look deeper, it turns out people get locked in just becaus

Just have a look at the list of AWS services and you'll find over a hundred of examples. But when you look deeper, it turns out people get locked in just because they want, not because they have to. A good example is ECR. You really don't have to use it to use Docker effectively on AWS, but it's slightly more convenient than spinning up an EC2 instance with a private Docker repo. Also it's well documented, many people use it and so on. So you get hooked up, you write scripts, and when finally you start thinking about switching you realize the sheer amount of work needed to modify all this is just scary. So you say, "I can't afford the downtime" and continue with AWS.