I want to point out that I started playing pinball on Solid State game like Black Hole and Black knight. My love for EMs is not based on what I saw and played when I was younger. Games like Dodge City, Ship Mates, 2001, Volley and Teacher's Pet are keepers to me because they are great games and great fun, not because of some nostalgia.
One thing that I have observed on EM prices is that a great game can go for cheap or take a long while to sell for seemingly no reason. There are so many titles, it really helps to get lucky and find someone looking for the exact title you are selling.
