These custom runs are great fun. So many shortlines and fallen flags getting some motive power or rolling stock. MTH and Pat's trains has been good to Northern Michigan railfans. Mr. Muffin has put out a couple of nice pieces too as well as Berwyns and others!
I have bought custom run cars from the Upper Michigan group because l thought they were interesting, even if out of my concentration on roads in Great Plains to Rockies. Dealers are going to do what they know, geographically, except, maybe for transcontinentals like Santa Fe. Who else is out of northeast but Mr. Muffin, the Wheeling shop, and Public Delivery Track? So those are my hope for custom car sources. Not that any of them could not gin out a car of universal interest.