The LAW. If I saw them lying around, I'd simply sell them... if they didn't weigh so much!
Non-katana melee weapons are pretty crappy but you find them around pretty often and are usually worth a hefty amount of cash.
Someone stock up 2 law to kill cause he's got not enough ammos , you'll take the ond to the ground and sell it for your own =O ?
*aim with his Law* Let's see who will Lawl with his money now =) *fire*