Wulf Ratbane said:
(My opinion is that the books are well worth the $10 bucks for the presentation and the joy of owning printed matter-- but then, I like books, and presumably the average PCGen user does not.)
I'm not sure why you would presume that. I don't know what the "average" opinion would be, but I personally like to have printed books. I don't much enjoy reading books (general prose nor technical material) on-line, especially when it was written for the page. Short technical documents are fine, and discussion documents like posts to these boards are fine ... but long detailed game rules? No.
And, for several reasons, I don't use PCGen material for which I do not own the corresponding publication. For one, PCGen doesn't include enough information to be fully useful without the publication (for the most part, that's a good thing, but I do wish they'd incoporate the short spell descriptions from the class spell lists (such as on PHB 159-171 ... assuming there's something comparable in the SRD, I think there is but I don't remember for sure)).
For two, I just don't think it's "right" (even if the copyright assumption is right, or even if it's OGC and PCGen becomes OGL compliant, it just doesn't feel "right" to make use of the material without buying it, if it was a work for sale and not free in the first place).