In particular the assumption that "Retrieval time is how long it takes Amazon to fulfull your request. Retrieval time has nothing to do with your download speed." seems to be the root cause.
Plugging in numbers from Amazon's worked example from https://aws.amazon.com/glacier/faqs/#How_much_data_can_I_ret... gives different numbers than that web page.
My estimate for downloading 1 TB continuously for 1 MB/sec is a retrieval fee of approx $25 in addition to data transfer fees.
In particular the assumption that "Retrieval time is how long it takes Amazon to fulfull your request. Retrieval time has nothing to do with your download speed." seems to be the root cause.
Plugging in numbers from Amazon's worked example from https://aws.amazon.com/glacier/faqs/#How_much_data_can_I_ret... gives different numbers than that web page.
My estimate for downloading 1 TB continuously for 1 MB/sec is a retrieval fee of approx $25 in addition to data transfer fees.