[karterk]

PR speak aside, it looks like they are trying to get people to switch to certain regions, perhaps which are not popular with lot of idle machines? The popular locations like Oregon and Virginia don't have much discounts to offer.

[idunno246]

for the US regions, california is already ~25% more expensive, so this just reduces the difference

[ehsankia]

Makes sense, trying to mixmax their load by adjusting pricing for people who care less about region and more about cost.