Yes, but partly just out of habit.
I received 2 paperbacks (available in Kindle format) the same day I received my new Kindle. :S
I also have another 4 or 5 books pre-ordered from Amazon. I'll keep at least one of them, as I want the first ed. hardbound for my collection. The other 4, depends on the book. I will probably end up canceling the paper editions for now, then ordering them again if they aren't out quickly in Kindle format (each of them will be the latest in a series, otherwise I would wait patiently for Kindle only.)