Right.. I only meant that the price/GB with Glacier does not vary depending on the total volume.
But still, it's too expensive.
On my own, I have a personal account (not professional) at Servage.net (4$ / month) with Unlimited Storage (but also unlimited everything: ftp, email, website, domains, bandwidth, DB, etc...).
Using an ftp account at Servage and SyncBackSE (35$ / 5 computers for a pro version), I could backup TB with encryption/compression on the fly and keep the storage under my own control. SyncBackSE has a free version but with no support for Windows Server, no encryption, etc...
About Servage, ok, some of my FTP accounts and websites have been hacked in the past, and my main email domain has been blacklisted once or two because Servage.net had security holes. But there are really cheap and I always had backup to recover quickly. They also offer WebDrive (which could be combined with the free CobianBackup), but I found this one to be "unstable" on Win x64. Next, if I am happy with their services (I have many domains hosted there, with many CNAME records defined to redirect subdomains on my current IP - through DDNS, mailing lists, etc...), I would not recommend to use Servage, due to bad reviews one can find about them on the web...

About backuping on Servage, I said I could do it, but I don't because it's too slow... ~2 days for ~30GB (28000 files issued from my user profiles - don't ask how I can have so many... 50% is used for game saves... 30% are in the "download" folders

). How could I be patient enough to do an initial backup of 13 TB and backup on a regular basis my VM (I use preallocated drives) or any new HD movies (usually ~8GB or much more...) ?