> Where is the use of SNS? Right, the SQS part is very misleading: "SQS has 1 consumer" is technically true (although it's actually one group of competing con

> Where is the use of SNS? Right, the SQS part is very misleading: "SQS has 1 consumer" is technically true (although it's actually one group of competing consumers), but in practice, you get fan-out to zero or more consumers easily, by wiring SNS and SQS together (one SNS topic, multiple attached SQS queues). > No RDS... Without also mentioning RDS with DynamoDB, you can't make meaningful choices between them. It also omits the one big benefit of DynamoDB: single-digit number of milliseconds to read a record by primary key, regardless of scale, due to sharding on that key.