It is indeed true that college is an expensive investement and it's sad that not everyone has the opportunity to go to college. As I am about to leave for college next week, I too have noticed how expensive it is and how hard it could be for someone who doesn't has a rich background. So yes, I agree with you: the system is flawed and there should come a cheaper solution.
On the topic of the books however, have tried searching for used books? These are usually not as expensive and can still be in really good shape.