[HelloNurse]

You just need another house to burn down.

Don't you have friends or relatives at a reasonable distance who can set up mutual backups on each other's home servers?

[GordonS]

Yes, but nobody else with a FTTC internet connection with an unlimited bandwidth allowance (I'm in the UK). I have 2TB of data, so speed is important.

[creepydata]

I don't have a single friend that has a home server. Most adults don't even own computers anymore, just phones and perhaps an iPad.

[ytjohn]

A good scenario is building a backup server/nas solution that you can put in a little cubby at your friends place. There's trust involved that you're not using their internet to hack the government, and you have to be mindful of their bandwidth/power costs. So not a rackmount server or even a tower, but something much smaller and very appliance looking. A nuc sitting atop a wd passport or their "my book".

If it provides them a benefit like an in-house plex server, even better.