I had an email exchange with Chris about one of these models. I tried to buy one of them from him by talking him down to a reasonable price, trolling/ween-free. The conversation went exactly as you'd expect, but here it is anyway, poor spelling and grammar intact:
Me: There is a price label on the box that says $17.99, why are you trying to
sell it for $50? I will only pay what the box says and that is 17.99.
What did you do to it to make it more valuable? The water damage makes it
look less valuable.
Chris: The model kit is over 30 years old; the box is big; the kit would be
considered rare and hard to find; the kit is no longer in production; my
mother and I are just greeting by and we need the money there that's for
sure. So buy it or leave it.
Me: I will buy this from you for 17.99 plus your shipping costs. If you are
willing to sell it at this very reasonable price, then we have a deal.
Chris: 25 plus S&H or bust; take it or Troll Off somewhere else.