It's pretty much ruined with this guy, but maybe I'll have luck with the next. What I need to do is go in with a very hard price set for what I'll pay per system, $10 per PowerBook or $5 per desktop or whatever and refuse to budge from that, and walk away if he's not willing to deal.
The problem is if you go in and ask for Apple or Amiga or something then they're going to think immediately you have found some way to monetize on such things, or if you just want one or two they'll charge you a boutique price.
There's a few other recyclers I am going to try, other ones that get lots of random computers from recycling drives and such where I might get lucky. This time I'm going to try a completely new strategy and I will walk away if the terms aren't favorable. I guess it takes one bad experience to learn the ropes but I think I'm better prepared now.