You'll get all kinds of opinions and you just need one person out there who thinks so and wants that domain. I would say probably and I'm just basing that on something I'm working on. When I first got into this on the side, I was looking for something where I can see all domain sales and easy to read. There are sites out there with sales, like dnjournal, soldnames, dnsaleprice etc. but what I did is put them all on a spreadsheet and now I can see:
keyword/domain .com .net .org. ...........
And can see what they sold for across the board.
Just started it and what I've seen from .com ----- .us is a range of .85% - 2%. But just started it (have 600+ domains so far) and only have a handful of sales both in .com and .us I think it's a good selling point, a way to market them, pointing out the sales in different extensions.
Figure I would throw in a few examples:
in $
christian
.com - 600,000
.us - 13,500
bingo
.com - 1,100,000
.us - 15,000
computer
.com - 2,100,000
.us - 17,000