I always wonder why people don't trust their offsite back-ups to cloud providers. I know they're trying to get away from getting locked out of their data, but what are the odds a burglar steals their computers on the exact same day their cloud provider locks them out because they violated the 'no making fun of ridiculous cloud provider lockout policies' policy? As long as your house burning down and your cloud gettin…
Oh I trust them not to delete my encrypted data and that's all that I'd ask. But I still don't have backups on hardware that I don't own: it's super expensive. From the cost of hosted backups, I could buy a hard drive of the same storage space every three months or something. And hard drives live longer than three months.
Putting a raspberry pi with a big hard drive at a friend's place is rather power efficient, dead simple to setup if you have any technical knowledge at all, and off-site. Use Restic or something to avoid having to trust your friend or whoever will burglarize the place. They have an Internet connection anyway and where I live, there are no bandwidth caps.