[_joel]

Of course it's more costly, you need to ensure state between locations so by virtue there's more infra to pay for.

It's not just a single instance too, there's generally a lot more infrastructure (db servers, app servers, logging and monitoring backends, message queues, auth servers... etc)

[ethbr0]

Also, people who can configure and maintain that infrastructure. It is more complicated, and it does require a different sort of person.

(And checkbox-easy is sweeping edge cases and failure modes under the rug)

[aledalgrande]

also inter region replication costs bandwidth money

[throwbigdata]

Lots and lots of money.