I'm looking to get a good variety of freight cars (box car 40' & 50') for my freight service. I'm looking at Ready-to-roll I already made a couple of blue box cars. I have a few P2K, Trains Canada and one Athearn Genesis RTR. I was looking at Atlas and Intermountain but GEEEEEZ! they're $45.00 and up each Is this the norm? $45.00+ for a box car?