Ki Ryn said:If you have Rhino Hide armor (+2 Hide armor that doubles damage on a charge for a measly 5,165 gp) and you want to improve it (like to +3), what would it cost (assuming the DM allows such a thing)?
I'm confused about how you determine the price of weapons and armor that are not built using the "Plus system". If they had just made "Armor of Charging: Market Price: +3 bonus.", then it would be fine. But +2 armor with a powerful extra ability for 5,165gp? That don't make no sense.
Caliban said:
+2 Hide Armor costs:
15 gp (base armor
150 gp (masterwork cost)
4,000 gp (+2 enhancement)
--------------------------------------
4,165 gp
The Charging ability only add's +1,000 gp to the price.
Going by that, it looks like you could add it to any set of armor for +1,000 gp. Rhinohide armor's main drawback is that it's the worst type of base armor in the game. It's a medium armor that's worse than Studded leather.
Personally I think that Rhinohide armor is underpriced, and would increase the cost significantly if the ability is added to any type of armor other than Hide or Scale Mail.
Ki Ryn said:Jemal, the theory is that Rhino Hide is cheap because it is Hide armor, which sucks. If you apply the Rhino Hide special ability to another type of armor (one that doesn't suck), then it should no longer be so cheap.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.