I use borg backup, one copy goes to a local backup disk (the cheapest brand-name 4tb USB external drive I could find) for quick recoveries, another goes to amazon glacier for catastrophic situations. Cost is something like $3 a month for just shy of 4TB of data, photos and videos that I've taken myself being a large part of that.

I would love to know if anyone considers printed albums, whether of photos, textual data or some other elaborate system involving QR codes or what have you, to be part of their strategy.