For anyone still looking Gamestop.com has them in stock used now. Use the eternal 10% off coupon and they come out to 17.99 each with free shipping (SAVER).
Grab the game in a separate order with SAVER and CAG16 and it comes out to $15 (there's plenty of nice fillers out there right now, too...Onimusha, Viewtiful Joe, etc.).
So the game and two Guncon 3's for about $50.