> It _should_ be cheap to operate HA systems across 2-3 AZs, In the steady state. HA systems tend towards large data bursts when failures or upgrades occur.

> It _should_ be cheap to operate HA systems across 2-3 AZs, In the steady state. HA systems tend towards large data bursts when failures or upgrades occur. > And at $0.01/GB, that's 2~10X what smaller providers charge for _internet_ egress. It's a lower latency network with a high SLA and automatic credits if the SLA isn't maintained. I think the inter-AZ option provides a level of service that's much higher than what most people want or need. It might be nice if there was a "best effort" inter-AZ network. This would probably fit better with the synchronization methods built into most HA software anyways. So, to me, it's a good product, it's just designed for a very niche segment of the market and often mistaken for something more general than it actually is.