Got an incomplete but unbroken Mobat for $1. Got a Budo and a Mainframe for 50 cents each. From a weapons bag I got a Viper rifle, mail-away parachute pack (with mint parachute) and STARDUSTER's GUN for $1 each!!!
Other than the CanJoeCon I haven't bought much, but I couldn't pass those up. Even with a huge collection, I still get that feeling of excitement when I unearth something cool or find a great score.