I agree with everyone else, he has a price in mind, but he doesnt want to scare you off because he knows its high. But on the flip side, if you should happen to offer a little more than what he has in mind, he hasnt committed to anything and can get top dollar for them. I say offer him $100 just to get his reaction, then you should be able to get the price out of him.
Then act uninterested and he will come down even more!
