I shoot panoramic with an Xpan, a field 6x17cm and a 7x17", so I believe that I am well-versed on this subject.
You can get Xpans for well under $3000, so please don't muddy the water with claims they cost this much (mine was well under $2000, and I also purchased a 90mm for it for under $300).
As lightweight travel pano camera, I believe there is nothing to compare. With a film like Velvia 50, you will get images good enough to make large prints. It is quick to shoot if you want to. It is small, relatively light and does not draw attention.
If I want something to take colour panos for larger prints, I'll use the 6x17. If I want large B&W, I'll shoot the 7x17.
But I'll generally pack the Xpan every time I travel and be happy doing so.