I found myself constantly wanting to read more during The Glass Castle. It was interesting and definitely kept my attention the entire time. But at the end, I was forced to ask myself the question, "Was I only reading because I wanted something good to happen?"
The entire book you'll find yourself wanting something good to happen to the kids. You just have to wait through all the bad stuff ad finally at the end, you see that something good does come out of the story.
Even when something good happens to the kids, (like saving up money for a trip to New York), you can just anticipate that something terrible is going to happen; like the father taking their money.
It's a very sad book, probably not for the soft hearted. But in the end, you'll feel very inspired and feel grateful for the life you have, no matter the circumstances.