The best way I can describe it is by comparing it to drinking too much, blacking out, and then waking up the next morning with no memories, but then your friends are telling you the events of the night and you’re in all the pictures. It’s just like that… except an entire year...
As someone else said its all about time and how much your time is worth. Offsite backup? Yeah you then copied the data to another drive then drove it to a remote location for safekeeping. So 2TB phone you need a computer with 2TB dedicated to your backup then you need a 2TB...