Just wondering...
In MIC, p.234, is a list of common item effects which can be added to items without the usual x1.5 increase in price.
I'm sure you're familiar with that, but as an example, you could add +1 AC armor bonus to your "Bracers of Archery" by paying 1000GPs (the price of Bracers of Armor +1), instead of 1,500GPs (the usual x1.5 price), because there's a "natural affinity" of the ability "armor bonus to AC" to items that fit in the arm slot.
Anyway... In the "enhancement bonus to natural armor" abilty, shouldn't "Throat" be listed as a common body slot? Amulets of Natural armor are pretty common, right?
I looked for a possible mention in the MIC errata, but couldn't find one. It's not a big deal, but i think it makes sense...