that's really nice of you. but my opinion the more people know how to compound the more there is a competition in game..
customer: who ever have the lowest price more customers
Books: more consumer books prices will escalate...
expensive books? goes to expensive equipment I'm sure you want profit too right?
That's what happen to Aries more book consumer.

it's same in real life I guess more people demand it the more expensive it is XD!!