LIST requests are priced by the 1000. And are priced the same at all storage classes. My estimate is that it would cost him $1 to click that button. 2M LIST

LIST requests are priced by the 1000. And are priced the same at all storage classes. My estimate is that it would cost him $1 to click that button. 2M LIST requests = (2B objects / 1000 per LIST) $1 = (2M / 1000) × $0.005 At least that's my reading of the Pricing page for US East (Ohio).