[tentacleuno]

On the face of it, I can definitely see the upside: "the cloud" is typically synonymized with safety ("your data is backed up on our secure servers", etc.), not to mention the fact that you can edit your data from any of your devices logged into Google. Heck, you don't even need to install Office anymore: you just go to https://docs.google.com and it's all there.

I do agree with you, though: one of the most important rules for computing in general is to keep multiple backups of everything. A while back, a friend of mine made a habit of emailing herself drafts of her work, and kept multiple copies on her computer. It did save her once or twice.