Pretty straight forward. But to make the thread more interesting, let's stick to knives that are worth more than $50. I'm not going to sell a $30 knife because I'm likely to get $15 bucks for it and it's just not worth it. I don't have the collection that many of you do. The XM-18 I own is far and away the most expensive knife I own. For me it would probably be the Spyderco Gayle Bradley. Especially since this is a discontinued model.