My vote for a small sleek generic 3 unit Lionchief 2.0+
Sorry just not going spend $2.2k on an Acela.
We used a rail pass during a Japan vacation and riding the “bullets” is how rail travel should be.
They are so sleek and fast - look like planes but quieter. The paint schemes are endless too.
I have a few Kato N Gauge models but O Gauge for me!