"The Motorcycle Diaries" by Che Guevara was an interesting book, but it wasn't very eventful. It doesn't have any larger purpose, it's just one man's inner journey. And to be honest, it's not a very special one. It's kind of funny, but when it comes down to it the book is overall just boring. The adventure is extremely ordinary, because well, it is. It's just two dudes driving around, and what they see.
After their adventure, Che became a revolutionary, so why not just write about that? It's like watching a Batman movie, and the movie ends before Bruce becomes Batman. Yes, his parent's death was important, and without it there would be no Batman, but really without Batman it was just a tragic murder. That's how I feel about the book. Sure, without the road trip Ernesto wouldn't have become Che, but without Che all the book is is a description of poverty. Why not apply his experience to what he goes on to do? Because without his actions as a revolutionary, his story is meaningless. And the book stops right at the meaningful part.