For us, the reason is we're primarily a Salesforce company and rely on the Heroku Connect product to facilitate bidirectional syncing between Salesforce and PostgreSQL (which also requires Heroku PG).
One of the biggest benefits to this product -- aside from the syncing mechanism -- is a bypass of Salesforce's extremely limiting (and expensive) API limits.
One of the biggest benefits to this product -- aside from the syncing mechanism -- is a bypass of Salesforce's extremely limiting (and expensive) API limits.