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  • Out of curiosity, why is it more expensive to scale up? I thought the point of these scaling databases were that you only pay for what you use... Commented Mar 2, 2019 at 18:38
  • I think you've answered my question more or less. But can you provide any studies or empirical evidence to show that scalable databases are a proven technology? I believe you're right but how can others be convinced? Commented Mar 2, 2019 at 18:44
  • these kinds of databases are intrisincally resource intensive. plus they a central point that all the apps use. They need the most cpu power, storage, fail over, etc etc. You can run most microservices on hardware less powerful than a calculator. Any processes that can be taken out of the db means the db has more resource available for returning and storing data Commented Mar 2, 2019 at 18:52
  • Why are they intrinsically resource intensive? Because of replication? Commented Mar 2, 2019 at 18:54
  • because of the volume of data they have to store Commented Mar 2, 2019 at 18:54