I tried the full res version of Google Photos. No direct linking to photos (not embedding a widget) is a deal breaker.
If I was only concerned with backup, a Dropbox paid plan or the 1TB I have with OneDrive would be fine.
But I want my photos – which are more documentary in nature – to live on the web and be addressable and findable. And my intent with this is my own domain, too, which is ownership and attribution in today’s web.
I think that a decentralized solution for the entire archive of my Flickr photos will give me that: never having to worry about cost or space.
For now, S3 is the next best thing.