That can't be it because the business version has a 2GB limit as well. That's too small to store Windows, OS X, Debian, or FreeBSD DVD images. The "enterprise"

That can't be it because the business version has a 2GB limit as well. That's too small to store Windows, OS X, Debian, or FreeBSD DVD images. The "enterprise" version has a 5GB per-file limit which would meet my needs - for now - but surely they're not expecting a single user to purchase an enterprise account.