Wow. Someone else has heard of Stan Freeburg! I have that song on my Android and will listen to it now.
It's funny - My first concern had nothing to do with functionality, but purely aesthetics. Others are concerned about functionalily. The thing is, when you board the train, you don't care what it looks like on the outside.
But again, I speak in the company of railfans. Many of the travelling public DO care about the external aesthetics of a train. What they see on the outside will set their perception of what is on the inside and determine their choice on whether or not they want to pay to find out. Most won't do a google image search of the inside of a talgo set prior to buying a ticket. If they see a hodgepodge of mixmatched equipment pulling into the station with varying equipment and perhaps an "incomplete" train with the cabbage missing, they may think twice.
The concept of "Uniform" is very important in business. A uniform delivers the promise of consistency. Whether the clothing that the employees wear are uniform, or whether the look of a product is uniform, the idea reflects consistency. Professionalism. Care to details. PRIDE IN THEIR PRODUCT.
I'm sure the comfort of the Talgos are very good. I hope that these new trainsets that we are paying lots of money for will convey that uniformity to the public. It IS our money, after all. Let's demand Amtrak does its BEST to get the most return for it.