The manual is 80 pages long and represents the largest cost of manufacture of all the various components. If you guys had any idea how much it costs for each page of a manual, you'd understand why they're no longer tomes. If Civ IV hadn't sold 4 million units, they wouldn't have been able to afford a 200+ page manual either.
The GalCiv II Gold Edition manual was completely re-written from the GalCiv II version. I'd say it's probably one of the best manuals of the past few years (it certainly cost a load).
The manual for GalCiv2 (the original) is 60 pages long, and other than explaining what things are (such as research means researching new technologies, and you can colonize planets, etc...) it was completely impossible to play the game with only the manual. It was and still is expected to search for online subjects in their forums on on the wiki, and read, read, read, read, and read some more before even attempting a game. And quite frankly, even with the sheer amounts of online reading I've done, it's still an almost impossible game to wrap your head around.
I've actually had members of their forum tell me point black "stop playing the game, and spend several hours reading the forums and the wiki". That is not how one should learn to play a game. I should not have to hunt for technology trees online to know what technologies are available, I should not have to find pages in a wiki to explain how the economy of a game actually works instead of the paraphrased explanations found in the manual.
I'm sorry manuals are expensive, but they are a necessity, especially when one is considering a game of such "epic scale". Produce an actual manual and give the option of purchasing it seperately (ala game strategy guides one sees for almost every game)... I'd buy one. I wish someone would actually make one for GalCiv2, I'd buy it right now (assuming it was more than just a rehashing of the data found on the wiki and forums...)