most promo cards are fairly cheap, i remember getting 2 of em when i went to the movie, then again my aunt went with me so that explains how i got 2. point is because you basically got them at the door when you payed for the movie anyone could get them and because of that the price of them where never really high to begin with, just like Mew (Wizards Promo 9), when I was in the league (before I lost my original cards), i went to an out of town league in my grandparent's town and got roughly 4-5 Mew (Wizards Promo 9), and there just as cheap if not more so. so basically if the promo card was harder to get a hold of, or was a missprint from wizards or nintendo it's actually worth alot, but if everyone got one, there not worth much. cya