I still read more library books than I do Kindle books, but that doesn’t keep me from enjoying the advantages of the latter. Several times, while using my Kindle, the author of the book I’ve been reading mentions another book. Now, instead of heading to the computer to see if the book is available at Amazon, I do a search right on the Kindle. If the book is in the public domain, I promptly download it.
In Teddy Roosevelt’s jungle journal he mentioned Arsene Lupine. Two clicks later I had one of his novels in front of me. Later when I read Chesterton’s All Things Considered, he enthusiastically extolled the poetry of Francis Thompson (most famous for his "Hound of Heaven" poem). I immediately found Thompson’s book among the free offerings.
This could become dangerous! (But not nearly as expensive and house-cluttering as my previous book accumulation habit.) The greatest benefit of the Kindle is still its portability. I love, love, love the fact that I now travel with no less than on hundred books in my handbag.