Here's the thing. I bought (relatively recently) the following books from the YMAA (just for interest and reference):
Baguazhang
Tai Chi Chuan, Classical Yang Style
Tai Chi Ball Qigong
These are all excellent titles... except for one detail. They faithfully repeat the same information across all three titles BEFORE you get to the meaty bits.
Now, to be fair the information contained is excellent. It's just that I feel that I am buying the same half a book each time. Although it seems to make sense to include all the introductory history and qigong theory stuff in each volume, it might perhaps actually be more practical to produce a definitive volume of THAT information and leave the other volumes to concentrate on their own subjects.
As it is the prices reflect the half of each book that I already own and am now paying for again, and again! This is not encouraging quite frankly. I am happy to support the YMAA as best as I can, but I (and others I am sure) do not have vast quantities of cash to spend in this manner. As a result of this I find that I have taken two courses of action:
1. I buy less books from YMAA on the basis of purely cost versus content.
2. I recently purchased a neigong book by another author not affiliated to the YMAA
Marketing strategy is important. I am not saying that the books are not worth the money on an individual basis - they clearly are - but collectively they are not.