what? 10 000 gold? That is freaking insane? The whole piece should be under 1000. What kind of maniac spends that much gold into just an armour when you can raise an entire army? I do not think armours were that expensive during the era.
Not being wounded as badly will help greatly for those who want to duel other people. Higher chance of survival. How about adding small background history for Ornate armours like family history?