I guess I'm different then with a home network of computers-turned-servers strictly for storing shit I've amassed the last five years of my binge-torrenting. Even then, I choose what I need wisely and still have under 500 GB of data, which includes music, movies, season, programs, and PDFs of books, textbooks, magazines and comics.
We're all different, but this reliance on cloud based services is a bit silly this early into it. Storing documents and pics and a few other files is fine, but if shit were to go down and all your stuff is backed up on the internet (think Egypt) then it'll really be an eye-opener. Not to mention the likes of lulzsec and Anonymous running around hacking government websites, amongst other things.
Flash memory will be cheaper soon. It'll probably be easier to back it up onto a large flash drive before it becomes worth it to back stuff up in the cloud. Large amounts of stuff. You can find 16GB flash drives for $15. Again, when flash memory is cheaper than it is now, why not have your data offline completely?