>only sold 7m copies (2nd lowest Game Freak pokémon game ever)
>for an outdated-on-launch console
Supply and demand, if those 7m copies were in circulation and actively changing hands daily, price wouldn't be that high. As it stands, most are drawered, binned or lost, the collectors have their copies and the rest are fighting for the scraps in circulation, were sellers have all the power, due to no possibility of a missing 100k copies of it showing up meaning they can set a price and some fuck will decide it's worth it for a 20 year old GBA game (not even a PS2 game either like, the fuck?)