In addition to being a lot cheaper, Google Cloud Pub/Sub allowed us to not worry about maintaining any more infrastructure that needed.
We moved from a self-hosted RabbitMQ over to CloudAMQP and decided that since we use GCP anyway, why not try their managed PubSub?
It is one of the better decisions that we made, and we can just focus about building more important stuff!
We are also making this decision, could you comment to me about your experience performing the migration, how you have been migrated the configuration and data?
Thanks for your help,