I understand the frustration when problems arise but with the volume of products you buy, the are bound to be some mistakes. Even on a $50,000 car or $400,000 house nothing is perfect. Sure it would be nice if they were perfect but they aren't. Also the threat of not buying Lionel anymore is pretty silly. I think I heard that one back when the first batch of UP excursion cars came out. The true mechanical issues like the Challenger are a problem, but just paint the lift bar mount.
My two cents