I am a new business selling digital products. Having encrypted download links with internal file hosting (e.g up to 500mb-1gb) would be perfect as most people are currently hosting their files on Google Drive or Dropbox and linking in externally.
The current issue is that the download links are now easily susceptible to piracy. On desktop, the download window pops up and downloads automatically, but the link in the URL bar can then easily be copy and pasted and shared online. Same with mobile.
Internal hosting for digital downloads would make the process a lot more secure, and prevent people from sharing the link. This obviously doesn't stop people from sharing the actual file, but that's another step in the chain.