> I've found that the greatest benefit of cloud storage is not as a backup, but as our primary place to keep and look at photos. We started uploading and organizing everything in Flickr a few years ago, and now we spend more time enjoying our photos with Flickr's web and mobile apps than we ever did when they were scattered across our laptops and backed up to an external hard drive.

This is a good point. I was 100% anti-cloud for my photos, but have to admit the barrier of bringing out the external HDD and hooking it up to a PC means we hardly ever look at them.