Proficiency Books (Store Item)

I think it would be an interesting way to increase proficiency caps by reading books over time. Here's how I imagine it would work:
The player buys a mystery book crate from the store for about $50. Random book is given with a proficiency icon on it. To read the book, a player must be sitting in a chair, and the chair would decide the max amount of points given per second (cap could be around 10 per second). The bar would fill up as if you were studying something, except no inspiration would be lost, and the higher the cap the longer it would take. Also, if a player stops reading, he would lose whatever points he gained during that session and gain insanity (for losing his place). The books would have unlimited uses but would only raise one proficiency level, not two. It could take up to a few hours if the player's proficiency cap is high enough, which is fair compared to leveling with inspirationals. I think this would be a fun way to use passive proficiency gains as a higher level player.
Added item could be an NPC Shop inspiration book. Could cost up to 50k+, and when reading it in a chair your inspiration rate would increase by 1-200%.
The player buys a mystery book crate from the store for about $50. Random book is given with a proficiency icon on it. To read the book, a player must be sitting in a chair, and the chair would decide the max amount of points given per second (cap could be around 10 per second). The bar would fill up as if you were studying something, except no inspiration would be lost, and the higher the cap the longer it would take. Also, if a player stops reading, he would lose whatever points he gained during that session and gain insanity (for losing his place). The books would have unlimited uses but would only raise one proficiency level, not two. It could take up to a few hours if the player's proficiency cap is high enough, which is fair compared to leveling with inspirationals. I think this would be a fun way to use passive proficiency gains as a higher level player.
Added item could be an NPC Shop inspiration book. Could cost up to 50k+, and when reading it in a chair your inspiration rate would increase by 1-200%.