How can I back up a patched version of Starcraft 2?

As we all know, when you first install SC2, the are several updates/patches that comes along with it and it takes aeons to finish.

I'm wondering if there is a way to save the updates/patches and restore it later when I reformat my computer so that I don't have to go to all that manual updating again.

Not quite the patches, but you can backup the entire SC2 directory and simply copy it back after your format.

Blizzard support says no, but you can still get it at fileplanet :D

Looks like patches are now available as separate downloads from Blizzard.

So when you update Starcraft 2 you could manually download the patches and save them for later. Then when you need to restore/reinstall everything: install Starcraft 2 from DVD, then run the patches.

EDIT: My link is now broken.