My feeling exactly.BSF said:That is what makes the GSL look weird to me. It precludes the type of products that I prefer and that undermines the likelihood that I will support the game with my consumer dollars. I would like to think that they could have crafted a license that would support the game in the ways I like to use it as well as in ways that WotC would like to see it used. But that might be a bit too idealistic.
If I remember correctly the best 3.x book was voted to be Unearthed Arcana, a book about tweaking the rules. That was the only D&D product that I bought when it appeared (others I did only well after release, and when I was able to read some reviews)