The cost by using AWS is hard to foresee. For years, my s3 storage got charged nothing. But some a month, it got charged several dollars. I have migrated all m

The cost by using AWS is hard to foresee. For years, my s3 storage got charged nothing. But some a month, it got charged several dollars. I have migrated all my services to GCE. At least GCE provides free decent quotas for every resource.