My understanding is Pilot of North America is not a distributor but a subsidiary of Pilot of Japan. Prices per market are affected by myriad factors.
Just as a counterpoint for anyone researching a Pilot fountain pen purchase, I have around ten gold-nibbed Pilot foutain pens in my collection at any given moment. They are some of the best writers, out of the box, period. I just inked up my SM Custom 912 and recalled that it is a delightfully juicy writer.
I'll never disagree that ebonite makes for a great feed, but stock Pilot feeds have been nothing short of exceptional for me (including an FA transplanted onto a Custom 823).
The Pilot USA warranty, in my experience, is not only worth its weight in gold but it's also so good and reliable that they'd probably still service a "compromised" pen, no questions asked (and yes, I have gotten service from Pilot USA, no questions asked).
Pilot fountain pens, every single one of them, at all price points, are the only ones I would recommend without caveat to anyone. (Again, I usually have at least ten gold-nibbed Pilot's in my rotation at any given moment.)
To prove that I'm not blinded by loyalty, I'll admit that Pilot could spice things up with a more regular release of limited edition colors, etc.