honestly when I first entered this hobby some time ago I was ambivalent about Amtrak.
Amtrak was everyday; my interest ran to SF, Milw Rd, and C&NW. Sometimes NYC and UP.
After the Acela purchase, I was still unmoved. As an after-thought I starting obtaining 21" K-Line Bilevel passenger cars. Those included SF and Milw Rd but at times Amtrak.
It wasn't until GGD offered the Amtrak sets that I became interested in those cars and now have a number of Amtrak engines.
Is anyone running the K-line Bilevels with the GGD cars?