Also, the issue with waiting 10 months will be you now only have one copy - the one on S3 and you may lose that data. Not because of the 99.9 recurring % guarantee of course, but another fubar issue - like someone hacking into your account - or some fubar with the backup script - and now you have no backup of the backup.

If you need the last resort backup, then you would probably want to revert to normal operations ASAP where you have the original and the first resort backup back in place!