Ok, I get the idea Apple has in mind with iCloud Photo Library, a uniform library synced across all your devices containing all your precious photos, and when something is changed, it's being changed everywhere, I do get it. The question I'm asking myself is when the Mac Photos app is released next year, I guess you will be able to transfer your photos from Aperture and iPhoto to the new app, right? Currently, my Aperture library's size is 38GB and I will be refusing to upgrade my iCloud storage since I don't want to be dependent on yet another company asking me to pay on a monthly basis. That means I will only have a maximum of 5GB of iCloud storage available for all my photos. At this point the idea of that uniform library is shattered. To solve this problem, I guess one device (which would be your Mac) would be acting as some kind of "central" that keeps the complete library, and either the user can decide which photos to push to the cloud or the app automatically pushes the latest 5GB to the cloud. This is utterly confusing... What are your thoughts on how Apple will handle these kinds of situations?