Running 0144" curves just starts making the long passenger cars look comfortable. My short haul N&W creeper with 60 footers looks great. I sold most of my long passenger cars and keep my remaining 80' cars in storage for appearance sakes.
A quick subjective determent factor: does my passenger train in a curve look like a segmented snake or a series of dominoes?
After spending many a lunch hour on a bridge watching the Amfleets run by on the NE race track my viewing tastes have been affected.