Because the blockchain is I could have every version of every file I've ever worked on, securely stored in the blockchain, as an infinite and indestructable personal backup.
The only small niggle I've got to iron out is that, owing to the small transaction fee attached to each fragment of data I upload, it is likely to cost me more than the entire GDP of the planet, just to back up my MP3s folder.
However, as I am also currently working on a means of using the blockchain to travel into the past, where I intend to deposit a penny in a high interest savings account in the Middle Ages, I expect to have this wrinkle ironed out pretty soon.
Kickstarter campaign address to follow.