How long do signed packages "live" on eSignLive?

Is there any limit to how long a signed package will "live" (i.e. be available for user download) on eSignLive? From what I can see, unless the package is explicitly "trashed" or "archived", the package will remain out there for user download forever - is that the case? Is there some kind of quantity limit involved? i.e. can we can only have X signed packages stored with eSignLive before we reach some kind of storage limit?