Why use SQS instead of SNS?

As a seasoned professional in the world of cryptocurrency and finance, I often find myself pondering the nuances of various technological tools and platforms. One question that has popped up in my mind recently is, 'Why should one opt for SQS over SNS in their operations?' Could you elaborate on the advantages that SQS offers, perhaps highlighting its unique features and how they might better serve the needs of those working in this dynamic field? Additionally, I'm curious to understand how SQS compares to SNS in terms of scalability, reliability, and cost-effectiveness. By delving into these aspects, I hope to gain a clearer picture of why SQS might be the preferred choice for many in the cryptocurrency and finance landscape.