Forum:Gladiator beast heraklinos

OK guys i have a question... recently i dueled an opponent and we [laced a card on the line, i ended up winning Gladiator beast Heraklinos. However we dueled again, and i lost, so i gave up my emperor dragon envoy of the end. However, that card wasn't special since it was from the lost millinum Box, I've checked online adn saw that Heraklinos was worth $100 is this true? or is Chaos dragon worth more?