the guerilla art kit

I’ve just discovered that Wreck This Journal is a thing and I want it. 
Now, the question is, do I get two copies of it (for a sort of “look at how much my inspiration/creativity has grown”/”that was fun let’s do it again” thing) or should I get another of Keri Smith’s books? 
There’s tons of examples of pages from WTJ, but barely any from any of her other books, so I don’t know what I would want. I don’t suppose anyone has examples of what the other books would offer?