The following reasons, first, the game is so extensive, in particular by 400 confidant that there is a need is practical one finally can not catch any level up and yes, well yes, but I do not want to know how much time it takes.
Likewise, extensive side missions, you forget or often overlooks something or you do not know where to look and therefore invests partly + 50Stunden more, not that it would be bad, but I like to play a bit more focused.
The guide even has a very nice quality and know by the clean-bound cover to convince the pages themselves are also high fat and make you think that the counselor is much more expensive than 25.
All in all I am very satisfied with the purchase.