They just are. Cause they're American.
It works for the saleman on weak minds. If it plays & sounds great, well built, and is a good value should matter most. I'm all for supporting my domestic companies but I am not blind to overactive marketing of the "Made in the USA" label by dealers and salepersons. It is funny how the Alvarez WY1 and Avalon S201CE are trimmed out better and about a grand less than the Martin and Taylor offerings. Problem is the Alvarez and Avalon are harder to find.
I buy American if practical to do so but will not be taken advantage by a marketing department waving a label.