Overall I really did enjoy the book Water for Elephants. I really did not have anything to complain about, although I do agree that the ending did seem a little unrealistic. Unfortunately my expectation was that Jacob was going to see the circus, go back to the nursing home, and then pass away in his sleep rather satisfied with his life.
For me, Walter and Camel were just supporting characters that really didn't have anything to do with Jacob. I understand that Camel was the one who took Jacob in, and Walter had accepted Jacob for who he was rather than the occupation he upheld, but since Sara didn't really revolve the book around Walter and Camel, like how she did with Marlena, August, and Rosie; I feel like she "got rid of" Walter and Camel in a very realistic fashion, since August and Uncle Al both wanted Jacob "red lighted" (it was an unjust way of getting rid of Walter and Camel, but I feel like that is what she had to do)
As far as everything else, I really do believe that Sara did a fantastic job with this book, and I would definitely recommend this book to other individuals.