Steelcity,
As per the website, here is what the enhanced manual includes:
1) Introduction by Carl Norman
2) Printed version (in high resolution) of the Reference Manual that comes on your CD.
3) A 70 page Training section written by Mark 'Shepski' Shepheard
4) An 80 page recognition guide, showing all the land/ground and naval units in the game.
5) An additional key reference guide, a brevity guide and some SAM missile data sheets.
So, the fact that it is a high resolution printout w/ color with a 70 page training section by Shepski and an 80 page recog. guide is what convinced me to make the purchase.
As it has been stated many times already (most credits going to Cretin ;) ) this enhanced manual is NOT a required purchase.
Like many of you, I was thoroughly disappointed to find out that the majority of the manual was found in pdf format on the LockOn CD. I have always enjoyed setting my flight sim manual beside the keyboard, for quick and easy access. The manual distributed by Digital Aspirin satisfies the desire, and then some. Sure, I could've just gotten by with a pdf printout, but I had a good feeling about this product and was willing to spend a bit more money to make it that much more of an enjoyable experience.