Jeff posed an interesting idea above. Now that 3rd rail owns the Lionel TMCC technology some S gauge engines could be offered in 3 variations. The normal scale version DCC ready but operates on DC. A plain high rail version for AC operation and a version for Legacy operation with fan driven smoke, TMCC and Railsounds all designed in from the factory. If so I am ready to place some orders, but lets get the passenger cars to us as the first priority.