The couple of AWS acquaintances I asked about this said that this kind of feature doesn't exist because: - There's almost no demand for it from the majority of

The couple of AWS acquaintances I asked about this said that this kind of feature doesn't exist because: - There's almost no demand for it from the majority of their customers. - Billing code is a big, scary, tangled mess and also happens to be the one area where you really can't afford to introduce bugs and make mistakes, so meaningful change is already exceptionally difficult.