Not Any More
I had two Sony eReaders, and the first generation Kindle years ago. Ever since iPad one came out, I have had no need for one. Now I just use my iPad two. I'm all for using one device, and I can use my iPad for everything from web browsing to playing games, to more productive things like reading to project management. I can also have multiple reading options on the iPad, such as PDF, regular Word documents, Kindle, Nook, Apple's own eBooks App ...pretty much anything.