Hmmm, I thought I had replied to this a while back, but I guess I didn't. Well being a fan of the Chessie System (as that's what rolled around my home growing up...B&O mainly though) I was an easy sell on C&O. If anything else needed to cinch it, it was going to the Henry Ford museum and seeing the Allegheny. That really did cinch it. Though I do model Chessie System, B&O, Monon and Indiana Railroad some as well.