Storage-oriented blockchains have different economic bounds because you
   can use the ones providing file storage to mine the ones requiring
   having it.
   Everything's underpriced right now.   The opportunity is to do things
   like rent sia skynet webhosting (or maybe filecoin?  haven't tried it
   yet =/) and heavily undercut e.g. amazon s3 storage, with a little
   marketing, UI, and user support.