It’s really just your photo library in a single place - even if you don’t use Optimize Storage. Keeping a local backup of your photo library is mighty important. Still, iCloud Photos backups shouldn’t be ignored. Have a 300GB photo library? With an iCloud subscription and Optimize Storage, you don’t need a 512GB or 1TB iPhone to take your media with you. ICloud Photos is a fantastic feature for syncing large photo and video libraries across all your devices.
