Their reasoning is flawed, since there is a tangible difference between a download and physical media with a case and manual. If the game code is the only thing to be considered when figuring the value, then their prices for the real deal should be for bare copies only. I don't know about current prices for the other systems, but the prices that they quote for some of the used TG-16 games is quite high - even for ebay (Bomberman 93 - $80, Galaga '90 - $30, Military Madness - $46, etc.).