For the used weaponry... If it were affected mechanically by how long it's been used, sure! That'd be a great idea! But... Sadly, it's not. An iron rapier that's been used for twenty years in-game is just the same as one that's fresh out of the tempering tub.
Request permission to sell USED weaponry at less than 20% off the price of a new weapon
So it seems the information I received at a guild (that a weapon will break after ten strikes on a tree, etc., ) was incorrect?
Can I operate a pawn shop that purchases weaponry at a reduced price, in order to make a profit by selling the weapons at normal price (or up to 20% off, if I understand the layo rules on this)?