As most people know, by the RAW, you cannot have a 3.5 rules-legal Darkwood Buckler. Yes, the SRD/DMG has an entry for a Darkwood Buckler, but the description text is for a light wooden shield, not a buckler .... and the price isn't accurate either. For some odd reason, that never ever got changed in the decade+ existence of 3.5. And yes, 3.5 bucklers is a "small metal shield" and Darkwood has this proviso - "Items not normally made of wood or only partially of wood (such as a battleaxe or a mace) either cannot be made from darkwood or do not gain any special benefit from being made of darkwood."
Why am I making a fuss over this? Well, the MinMax Forums folks and their predecessors, the BG Forum folks seem to advocate the use and tweaked optimization of Darkwood Bucklers quite a bit. I actually don't have an issue houseruling bucklers to be made from Darkwood. However, if you Google Image "wood buckler", there's a not wooden buckler made from 100% wood anywhere to be found.
Pathfinder didn't fix the issue either after all those years of unaddressed errors. They just copied the 3.5 negligent ruling for Darkwood Bucklers verbatim. Although from what I hear, there's a PF supplement called Game Mastery Guide that does address the discrepancy/problem. I just don't have access to that book.
Darkwood Bucklers, especially when given the Feycraft or Githcraft template (from DMG2) are extremely awesome bucklers for primary spellcasters. Primarily due to their ridiculously low price in comparison to the similar benefits gleaned from the higher cost Mithral Buckler ... and the buckler's ability to cheaply wear augment crystals or be adorned with ASAs if the buckler becomes magical.
I also noticed that MinMax and BG folks often don't price the Darkwood Bucklers (and the magical Feycraft Darkwood Bucklers) properly. I think there's confusion with Darkwood being considered a Masterwork Item, the DMG/SRD's weird entry item for DBs, and how to stack all these substances/templates together.
So some questions for all of you.
1. Do you acknowledge that DBs are not RAW-legal, but still advocate them as reasonable houserule-legal?
2. How much GPs would you consider a magical +1 Darkwood Feycraft Buckler to cost?