Track prices for ROM Hack Games

Let us track Rom Hack games such as Dragonball Kart, or Pokemon Crystal: TwitchplaysPokemon Edition. There are all sorts of ROM hack games on eBay so they may be tricky to track, but I know that some collectors like to collect them. ROM Hacks are probably most common on Pokemon Games, such as Pokemon Ash Gray and Pokemon Uranium, and plenty of them have been released physically.