[acdha]

AWS does a lot of enterprise business but I’d also think about it as setting the upper bounds: you probably don’t need millions of transactions per second but if you’re a startup needing, say, thousands it’s nice knowing that you don’t need to fundamentally rearchitect for a while even if you become popular. The pain of hitting the limits of a single database write node can be high because you need to make substantial changes to what is by definition a busy system, but you have an incentive not to make the big changes until you need them since they make everything else more work. This gives you the option of effectively never needing to do that, which is going to be popular with anyone anticipating lots of growth if it delivers as advertised.