Oh, and the thing with the 328's being too expensive to maintain, then why is it that in 2000, ZW purchased almost $10 million in parts for the aircraft to put in stores?
Most of the parts that these planes use on a normal are still produced, because they were all bought by Fairchild-Dornier (or Daimler-Chrysler-Dornier depending on which plane you were looking at) to be put on the aircraft (engines, fasteners, tires, brakes, hoses, etc), so the aircraft going out of production didn't equal the price going up as was previously claimed. If that was the case, then -
AAL wouldn't be flying F-100s
PSA wouldn't be flying 328Jets
Air Tahoma wouldn't be flying Convair 240s and Convair 580s at 2/3 the price of an ATR-42 and ATR-72 respectively.
Just because the company that built the plane isn't around anymore or doesn't build the plane anymore doesn't necessarily mean that the cost of maintenance goes up. If that was true without fault, then many of the Douglas DC-3, -6, -7, and -8 aircraft wouldn't be flying still. You wouldn't see the 727 in such numbers on the freight lines, you certainly wouldn't see our Convairs in the air.