"BACKUP" is just not cheap (Score 1)

One thing a lot of people just don't realize is that "backup" and "cheap" are not to be used in the same sentence. Data on $.50 CDR Media is >>not safe If you want to make sure your data lasts for the next few decades use DAT or DLT (10-30 years).
Periodical media replacement is the only way to go and the fact that almost all data is/can be stored digitally makes it easy (but not cheap).

The punched cards is a nice idea, but not as realiable as one might think. Paper also dissolves quite rapidly due to acids used during production.

ps: I don't think I need my p0rn collection after a nuklear stike...