Once you find that awesome suit of armor or weapon, there is no need to find something else, and you never use that otherwise cool but not as good dwarven warhammer/leather armor or whatever. When I think about it, this lack of durability on stuff is what breaks the game the most for me. Is it worth wearing down your amazing bastard sword on meager bandits or should you use your cheap one-handed axes for them? Maybe non-unique/non-magical weapons could be broken beyond repair, so that the player actually had to buy or scavenge a new weapon. The more expensive a weapon is, the more it will cost to repair, making the player have to think economically.
Basically a smallish mod which makes all weapons and armor lose durability (perhaps also damage and defense in the process) until they are broken and cannot be re-equipped until they are mended either by a blacksmith npc or by the player using a forge and some steel or so.
