When I was selling my C-64 stuff on E-Bay a couple of years ago MULE was one of the games I listed without knowing of it's desirability. The listing wasn't up for long and I figured something was up. I had several offers to sell it immediatly (which I never did on any auction) and it ended up going for well over $100. I can't remember the exact figure. I used to play the game once in awhile, but after playing it, it always took several hours to get that theme song out of my head.
