Ebay offers Lionel 7-11925 Polar Express Battery Operated Mini Train Set Standard for $28 (reg. $58.99) with free shipping.

Product Description:
This set comes an exclusive track system which allows you to create a circle, a rectangle or an oval layout. Sound on/off switch; bell/whistle/steam chuffing; 3 announcements: All aboard, This is the Polar Express! Tickets, tickets please! I am the king of the North Pole. 3 position Fwd/Off/Rev switch