I once sold a model of the dropship from the movie "Aliens.". It was in my basement for years, I realized I was never going to build it so I listed on eBay. I had no idea it was an out of production collector's item. I think I started it for 9.99 and it sold upwards of $200.00! Color me startled, but happy!

And yeah, jg, eBay lost me when they went to one-sided feedback.