>I'm actually starting to find it a bit depressing; anything even slightly appealing to collectors is going for hundreds --mostly, I guess, to bookdealers

Unfortunately, the hardcore professional bookdealers are a bit like estate agents and second hand car dealers. They do have their place, but for the most part they just add to the cost incurred by everyone and drive prices up. I may have just been unlucky, but I have to say that my least satisfactory purchases (in terms of correct/accurate product description) have been from professional bookdealers. Even the more well known Tolkien book dealers can be a bit "optimistic" with their descriptions on occasion (and I'm not THAT picky).

Stu