Yes, I'm very happy with the storage I pay for at Google. Hard to beat $5 for 20Gb.
I hope their prices stay that low.
That said, with Dropbox's versioning of files, I can see Dropbox arguing each Gb you have there can really be much many more Gbs than what you seem to pay for.
It will be interesting to see Google's features. What I value most from dropbox is the versioning and the relatively seamless integration into the operating system.
Any of the files in Google Docs format (docs, spreadsheets, presentations, etc) already support versioning and history. I don't know how that effects the total storage however.
Files in the Google Docs format do not count against your quota. Files not in Google Docs format also support revisions, but each revision counts against your quota.
You're right about that, and I had forgotten that.
The interface seems different, the dropbox versioning appears to part of its file system, the google versioning as part of the application.
So for me, dropbox versions some blobs (truecrypt volumes) that it's not clear that google could version, unless they add a different interface to google drive (and I sure hope they do.)
But with how Dropbox stores files (de-duped), there can really much fewer GBs than what you seem to pay for. I'd say that it more than evens out, especially since large binaries are much more likely to be already stored and not versioned.
Dropbox - Current options
50 GB ($99.00 USD per year) - 100 GB ($199.00 USD per year)
Google Storage - Current Options
20 GB ($5.00 USD per year) - 80 GB ($20.00 USD per year) - 200 GB ($50.00 USD per year) - 400 GB ($100.00 USD per year) - 1 TB ($256.00 USD per year) -