or replication if you're not erasure coding. So yeah you need more storage-optimized server racks and all the associated manpower and maintenance, you also nee

or replication if you're not erasure coding. So yeah you need more storage-optimized server racks and all the associated manpower and maintenance, you also need them to be distributed across different datacenters and zones which of course also impacts latency and your ability to provide some appearance of consistency, then you also need the same distribution for stateless services serving the data. On and on and on and you might be nearly doubling cost to get to an extra 9 that almost all of your customers won't care about.