The Metro is the king of the 19 seaters based on fuel burn. With the price of fuel heading for orbit these aircraft will be here until there is no more fossil fuel to pump. Those PT6 powered aircraft need the soot washed off them every night. Those stand up cabins just add drag and make the aircraft look stupid. The only truly 19 seat Jetstream the Poms made is the 41. The rest are junk and have the reliability / performance that goes with it. Never get caught in a Metro departing behind a J31.