Where Are the Joysticks For Retro Gaming?

Doctor O writes "With all those nice emulators for classic gaming around (such as MAME, VICE or Stella) I want to establish monthly retro gaming evenings with some friends. The problem is I can't find any good joysticks for that purpose. There's a new version of the legendary Competition Pro, but judging from the many one-star reviews on Amazon, it's terrible. I found the USB version of the classic Atari Joystick, but it doesn't seem to be available and would have prohibitive shipping costs to Germany anyway. So, Slashdot to the rescue — where are the suitable USB joysticks for retro gaming?"