xdelta (sub)vault?

For game translations (and potentially other patches, such as pokemon randomization patches) would it make sense to have a seperate section with the patch files instead of hosting the entire, pre-patched file?

Pros:
- reduced disk usage server side
- downloading a patch instead of a game, so faster downloads
- could encourage more trans./patches to be uploaded?

Cons:
- what to do with existing trans./patches?
- where would it go page wise?
- how to validate/verify patches?
- not many patches/trans. are hosted, so why bother?