If you're willing to pay for Amazon Prime, you get unlimited cloud storage for all your photos. RAW included. The only method to upload/download is via the clunky web UI, but if reliable storage is what you're after, it's a pretty hard bargain.
problem is they don't support syncing folders. You'd have to keep track of what you've uploaded already. Also I haven't been able to get it to successfully upload all my photos, seems to always stall out after a few hundred photos or eventually hit some sort of rate limit that goes to a crawl
A "real" cloud backup (That is, not just cloud storage) like CrashPlan is just a few dollars per month. I pay less than $3 per computer per month for backup of several TB with history for each file. I just couldn't imagine it would be worth buying the hardware or configuring my own backup to make a non-cloud equivalent.
Crashplan recently removed it's multi-year plan and increased prices. Gone are the days of 4-year plans that average out to a few dollars per month. Crashplan's prices have nearly doubled in the past three years alone. Disappointing.
How I reach as low as $3 per computer per month is through the family plan which is something like $12-13 but allows up to 10 computers. Not only does it back up my photos, it also solves the "I clicked OK in some dialog and now the computer behaves funny" of relatives.
Are you able to access the files of your relatives with CrashPlan's web restore feature?
That feels very much like easily violated privacy/personal space to me, and is the one thing that continues to bug me whenever I consider switching to the family plan to get better value.
Yes, I think everyone can see everything within the family plan (though haven't checked if just my account is admin). To me this is certainly fine for me/spouse/children/parents but wouldn't use it for other family and friends, which I assume is what actually makes this license work without being abused.
