I'm sorry, but if someone seriously wants the rules to give different prices for all kinds of rare materials and their combinations together with a good description for each, then you need an entire book just to describe the Breastplate.
What's basically been said here is: The rules cover the "important" game mechanics for the breastplate. How you fluff it and describe it actually looking on you, is totally up to you and your GM. You like the 3.5 description better? Go for it.
And well, if you want some rare gauntlets to go with it, you'll have to wing it in regards to the price, the rules simply can't cover everything.
I don't disagree with you, i just disagree with responses like "If this bugs you, I suggest to stop reading the book right now" and "Why does this even matter?" Well it obviously matters to the original poster. If there are like minded individuals to ArmoredSaint then hell get the discussion he wanted and if there arn't then he wont get any posts.
What he shouldn't have gotten are people telling him to what matters and to stop reading etc.