Video Game Price Guide From 1990

If you click this photo you can see it full sized.  It's a scan from Gamepro Magazine Issue 6, Feburary 1990.  Its for 1-800-Toy-Club.  This interested me simply because it was a primitive form of a video game price guide.  Some of the games are ridiculously overpriced, even for the time, but what's really interesting is that it shows what they sell a game for new, used, and what they are willing to buy a game from you for.  I spent a few weeks looking for this ad, but there is actually a "newer" one probably six months newer than this that had ridiculous prices for Ms. Pac-Man, and Romance of the Three Kingdoms.