Remember that these core services are free for only 12 months. After that, it's pay as you go at the usual rates. On the plus side, some of the other services -

Remember that these core services are free for only 12 months. After that, it's pay as you go at the usual rates. On the plus side, some of the other services -- DynamoDB, Simple Workflow, Simple Queue Service, Simple Notification Service, Amazon Elastic Transcoder, and CloudWatch -- are still eligible for the free tier after the first year.