You've got to be kidding... Format / DRM considerations apart, the current Kindle (as well as many other devices, but I speak of what I have) is at least on par with a paper book for clarity. Page turns are fast, it's easier to search, easier to use one-handed (on public transportation, for example, where I do most of my reading), easier to look for a word (English is not my mother language) and generally more practical than a book.
The best endorsment is probably that since I have gotten it, my reading time has increased, and I have always read quite a lot. Ah, that was several months ago, so it's not the love of a new gadget... It's that good.