Originally Posted by c4djack
Storage is very cheap nowadays. I don't see a problem with that. You get terabytes of storage for relatively little money. Audio recording needs lots of space anyway, just like video production, 3D rendering, et cetera.
Currently, people make copies of their song files (well, if they remember to do so, unlike me). Takes up space, too.
I typically backup 20 or more versions (one every 5 minutes) with a similar feature when using Pro Tools. I see no reason to increase my disk usage by 20 times!
Also consider the time it takes to write all audio every time the system backs up, and the ways this could negatively affect the playback of the song.
I'm not a believer of "throw more hardware" at the problem, unless other options have been exhausted. :-)