Not that it really matters, but there's a guy in Memomonee Falls that wants "thousands" for his night moves that pops up on the Milwaukee Craigslist from time to time. He basically hung up on me when I was mentioned I was thinking $500-$600 for it.

I'd say around $600 for a working one, and as mentioned above, in the $300 range for a non-working one. I might pay $300 for it, and I'll be at MGC.
That idea about the silent auction is another good idea, if you're into donating and that kind of stuff.