I've had a similar experience to most here with PWRS. I avoid shopping there unless something is only available through them, like these boxcars. They always charge MSRP and an arm and a leg for shipping. And they have this crazy idea of how people want to shop for trains, and the "goodie box".
That being said, I did pre-order all six C&NW boxcars over a year ago and am looking forward to receiving them, even if the cars and the shipping are overpriced.