Being one of the people who purchased the Campaign Workbook, I was disappointed with what I received (not for the binding issues, which just added fuel to the disappointment).
The image used on the product page is of a 4:3 ratio book and no dimensions are listed anywhere as to the actual size of the book. This led me to believe that it would be near the typical 8.5" x 5.5" journal sized book, but instead is only 5.5" x ~4.25".
I was also disappointed with the amount of space given to certain areas - especially the PC Registries (1p/character), Major Organization Notes (1p), Major Villain Notes (1p), NPC Registries (0.5p/character) - as well as the lack of space for items, monsters/creatures, events, etc.
Now, for some GMs this may be enough space to jot notes and the such for their games, espeically if they typically run modules from Dungeon or other sources. But, for me, I was hoping that this would be a good tool for me to track many different elements of a game, including using multiple journals for the purpose of capturing nation/region-specific views/relationships that would help as characters move from one region of the world to another and encounter different people with different ideals and concepts.
What type of interest would there need to be to encourage GameMaster/Paizo to possible create a journal similar to this:
http://www.rpgtimes.com/Journal.jpg
Wherein the pages are protected by a thick soft cover or a hard cover and the option for purchasing and inserting more pages is available. Allowing GMs to customize what they need in the journal as well as expand with their growing game.
If the options were well-provided and the journal was sturdy and well designed, I wouldn't mind paying $30-$50 (depending on quality) for a journal of this type as well as $10 for extra pages to place into the journal.
Please post your thoughts on this if you're just reading this and I really hope that GameMastery can look beyond the compact, stock card-like cover, page limited workbook and to a tool as mentioned above for GMs who normally use regular notebooks and have their information all over the place and in different formats.