I usually lurk on this site, the DUO is my favorite system of all time I thought this was the time to make my first post. I was not aware that my copy of Dynastic Hero was worth upwards to the 500 dollar range, and when I metioned it to my wife, she said "SELL IT NOW". I have'nt played it in years, but I feel I should hold on to it. I wonder, if I hold onto it will it go up in price, or will it somehow get a miracle reprint and go down in price when the WII comes around. I keep staring at it now and wondering...
I always wondered about this (also Magical Chase), how many people own this game and have no idea of its worth (or at least the price it fetches). And if only roughly 5,000 copies exist, how many of those are still in circulation (complete and working condition). I loved to one day add this game to my collection (it and Bonk 3 CD are the last Bigs I would need), but paying around $500 for a single game doesn't seem likely (or ethical for myself knowing the state of the economy and the world really). Good luck with the auction man.
P.S. - No offense but why put the data-side of the CD down on a surface other than it's case or a Duo (which greatly increases the chances of it getting scratched up for simply no reason). That drives me absolutely insane when I see that in auctions, especially rare games. 
Although I don't think that too many copies of Magical Chase were made, I don't know if it's really quite as rare as it seems.
I think that the fact that it's actually a quality game that is actually desirable outside of rareness makes more people hang onto it than all those rare games that noone really wants to play.
This also makes people snatch it up as soon as anyone lists it for sale, making it even harder to find.
Of course, as a later HuCard release that has no real case, its certainly even rarer to find with anything other than the loose game itself, let alone manual or box.
It also gets inflated value since the PC Engine versions aren't common either, unlike Dynastic Hero.
