You can download samples that work on the Kindle from Mobipocket.com. Also, whenever a new update is available, Amazon always creates a self-install version (they have to for people in the U.S. outside of Whispernet range). You'll still have easy access to Kindle books so there is no reason *not* to keep your Kindle. If you would like another ebook reader to add to your collection, it couldn't hurt.
