I believe certain breeders have a monopoly on the arrowana (gold, redtail gold, super red) trade. It's kinda like diamonds. Only a couple of companies own the vast majority of diamonds in the world, particularly one in south africa, I believe. There is plenty of diamonds, it's just that they are regulating the flow of how much diamond can be sold each year, thereby regulating the cost also. This is concept is also used in the aquarium trade, especially arrowanas because only a select few have these fish and are able to breed them, especially in Singapore.