The ship apparently had a maximum passenger capacity of 2,453 passengers. From what I understand, the owners of the Titanic were keen on highlighting how impressive and grand the ship was. Much attention was given to its size and luxuriousness.

However, the total number of passengers on Titanic's ill-fated maiden voyage was only 1,317 people - over 1,110 fewer than it's max capacity. Why was this the case?

Obviously, it is a good thing in retrospect that the ship was not filled to capacity. But I would think the maiden voyage of a ship as notorious as the Titanic would have been sold out- or at least close to it. Why wasn't it?