I had to win mine off ebay, but if I ever saw them in store, I'd snatch them up so quick...... 
 
They are freakin' amazing (I like em')! 
 
<awwwe...and I thought FP was talking about me when he said he knew of one pair in the states.  LOL> 
 
I also saw the brown smoke/dark amber Gascan.  It's nice, but still a pretty subdue look, right along the lines of the polished rootbeer/amber colorway.