I think that's mainly because I get to read the book again, too.
Here is one of my very favorites. I used to read this to my 3rd grade class when I taught school.
Tonight I finished reading this to Anderson. He loved it and I loved reading it again.
If you have boys, read this to them. Girls would like it too, but it definitely has boy appeal.
I'm not going to tell you what it's about, but trust me, you will be drawn in and you will love it.