I don't remember what I sold my last pair for, but both my 5002s and my 4002s were bought by the same AK member and he loves them. I thought they sounded really sweet. I think I gave him a deal on the 4002s as a repeat customer, but I also think he paid over $100 for the 5002s, and that was probably 3-4 years ago.
That said, $200 is definitely unreasonable, but I think you could do a lot worse for $100.