You know that pickaxe you've had forever? The one you must have used about 50,000 times? Wouldn't it be nice if the game recognised this in some small way? This is a simple suggestion, each tool has an integer stored on it that records its number of uses. Once this number gets to a large one (10,000 or so ) it gains a little prefix (akin to the rare ones) "heirloom". As a bonus heirloom tools always clearly display their maker, are slightly easier to enchant (+1 or something to rolls) and are worth double in the eyes of merchants. Optional Extra : If they reach the unlikely use number of 50,000 they gain the "antique" prefix, also gaining an extra effective rarity level (since how many tools actually reach 50,000 individual uses?) and a larger enchantment bonus (+3 to rolls) and are worth quintuple to merchants. So a rare antique tool would function as a supreme tool, a nice bonus for people who hand down tools.