Foreword: this post is not a whine, but just a way to express my frustation.
I don't understand why Larian has removed the regeneration of skill/attribute books at the Seller of Secrets.
For me, this feature was a great way of adding replay value to the game, where one could try to reach this seller as soon as possible in order to maximize the benefits.
On one hand, I can see why some players wanted this feature to be removed, claiming this feature was somewhat too powerfull in easy mode with four characters. However, nothing forced them to buy these books. Nothing.
On the other hand, by removing this feature, Larian has just removed one of the reason some players could play the game again, trying to min-max their experience.
Not to mention that with the current Lone Wolf talent design which doesn't give additional attribute points (?!), it is very hard to make hybrid Lone Wolf characters.
This change has just made the game weaker in my opinion.