many of us have checked the prices of the armors and weapons that were introduced with the steel door coins and with simple maths we have seen that the ammount of the coins provided is not enough. i don't know though how many of us (since i have not seen any of us reffering to this) have seen a magic option in the window that pops up when you are talking with our beloved adventurer's guide that lets you instead of buying new gear with the coins to upgrade the gear you already have. if some of you did actually see this i don't know why you remain silent. i bought a c grade helmet with the coins and i have seen that the upgrade of it to b grade costs much less than buying a new one. looking for info of the upgrade values.