Google Docs already acts as cloud storage, you can upload most file types there.

https://support.google.com/docs/bin/answer.py?hl=en&answ...

They also sell extra space, shared with Picasa.

https://accounts.google.com/b/0/PurchaseStorage?hl=en_US

True, but "most files" still doesn't cut it. I have great hopes for the upcoming Google Drive, it would solve many of the problems I'm facing right now in project management (I wrote about it on my blog: http://luckyisgood.com/blog/google-drive/) - and support for all file types is essential if Google wants to call its service "cloud storage".

Holy french fries. With Google, I can get 80GB for $20/year: https://support.google.com/docs/bin/answer.py?hl=en&answ...

With Dropbox, 100GB would cost me $199/year.

I've been with Dropbox forever (I have account #315) but man, it is tempting to snag 80GB for the price of half a tank of gas.

Convenience is obviously the primary loss. But I'm a nerd. It would likely be easy to figure out some way of auto-syncing my whole music folder.

My other primary usage for Dropbox (and incidentally the motivation for its inception) is as a way to transfer files to other people. There's nothing like being able to host your own .html file within your own dropbox with literally zero effort. That said, a hybrid of the two seems best -- ridiculously cheap bulk storage, combined with the convenience of Dropbox when needed.