> The downside of on-demand is the pricing - it's more expensive if you have continuous load. True, although you don't have to make that choice permanently. Yo

> The downside of on-demand is the pricing - it's more expensive if you have continuous load. True, although you don't have to make that choice permanently. You can switch from provisioned to on demand once every 24 hours. And you can also set up application autoscaling in provisioned mode, which'll allow you to set parameters under which it'll scale your provisioned capacity up or down for you. This doesn't require any code and works pretty well if you can accept autoscaling adjustments being made in the timeframe of a minute or two.