I use optical discs sometimes, including for backups (I think the use of WORM media for making backup copies is beneficial).
There is also benefit of locally stored data. You can store them in hard drive, although sometimes external media can be helpful too, rather than needing to use internet for any transfers.
There is also benefit of locally stored data. You can store them in hard drive, although sometimes external media can be helpful too, rather than needing to use internet for any transfers.