It's mostly, right now, because Amazon's desktop software is _so_ bad. Whereas with Dropbox and Google Drive, I can simply save files to a directory on my compu

It's mostly, right now, because Amazon's desktop software is _so_ bad. Whereas with Dropbox and Google Drive, I can simply save files to a directory on my computer and can be assured that Dropbox/Drive are uploading them automatically and keeping them in sync, with Amazon, they seem to have forgotten about Sync all together. There are files that I add to the cloud. Should I need to work on them again, then I download them from the cloud, edit them, and add them back. This workflow sucks, and it's worth paying to not have to do that.