AWS is way more than hardware.

Lambda - on demand code execution

Route53 - DNS and domain registration

S3 - File storage with redundancy and an HTTP interface

RDS - Managed relational databases

DynamoDB - NoSQL key/value store with indexing and scanning

SQS - Job queue-ing without needing to manage servers

SES - Email service with the ability to both send and receive email and also trigger a Lambda function when email is received

SNS - Fan out notifications with multiple destinations (iOS, Android, Email, SMS, webhook, etc)

IAM KMS - Manage your encryption keys

EC2 - Ok, this one actually is hardware

Git hosting, docker file hosting. Etc...

That is just off the top of my head. However, if you want to avoid vendor lock-in, then yes, it is just hardware.