Robbie,
i concur on your comments on the MP cars... I did not buy them nor the NYC. There are variances in quality of the NYC build too. The single door cars are better then the door and a half. The SP PAC limited are the best built of all and fetched good prices. I got four PSC o/b cars which many overlook and pan, but I feel offer real value at $180-220. I can add more images of my weathered models when I get back.
i expect to see more boxcars in the next round....