I'm thinking about using s3 as a photo and video backup of the original content. I also inclined towards using Google Photos as enough Hi-Res option so that if I need to check them out without downloading the original one. I'm sure this is the common problem faced by many, so I wouldn't be surprised if there are already existing apps for backing up your photos to S3 (Not cloud-berry like but specifically for photos which can also create thumbnails and copy it to S3 bucket).