How would you do multi-region deployments with your own DC?
This is an issue for several companies that start small and within 5 years they find the need to expand abroad. Be it for data sovereignty or so, which is becoming more important than ever in the last 10 years.
Duplicating a region is "a few clicks away" on AWS. This is what the provider enables you to do.
This and a lot of other things. And for such things, yes, you gotta pay.
I mean its not that complicated. Rent space in another location, get separate fibers/wavelength between them, redundant internet connection.
But if you're in a growth/startup phase it doesn't make much sense to spend engineering time on this, not that multi region setups in Aws is one button either. Once you're past that and paying aws a million per week or so I think it can make sense to offload expensive services to your own hardware.