[Nexxxeh]

That depends, because you can actually recover it for free over a long enough time period. It's easy if you plan your file sizes in advance based on your allowance, and don't need it in a hurry.

Your bill is based on your peak retrieval rate multiplied by the number of hours in the month.

But you can retrieve a calculable amount an hour, for free, all month, for however long it takes to get your files back. You could also pay a little bit more, and get them back much after.

You certainly wouldn't want to request all 3TB at once though.(It would be billed spread over four hours, and it'd still be thousands.)

You can request ranges of files, so even if you have massive files, you can still throttle the requests to below a given threshold if you're careful.