Yeah that's true. I think I meant more toward understanding the granularity of operations common to AWS, with the assumption that the logistics of moving data onto S3 to Glacier would be the same. Since you can control expire-times on S3 files, there might be situations in which you want files on S3 for a short period, maybe 30 days, because you want a window for quick access just in case you were prematurely archiving, while making sure they're also on Glacier...I frequently find myself hoarding files, keeping them on S3 (or worse, USB keys) for longer than I had intended...