Thanks fellas,
I've been engaged in a bunch of post-market surveillance on both Ebay and Yahoo (JP), as well as from various dealers.
I should say, though, I do have a preference for doing business in Japan. I spend several months there a year (have done so for 15+ years), and am comfortable navigating the business environment. It also helps that the yen is weak, and supply is better than in the US. So, I've been paying attention to inventory/prices in the links to dealers provided on this site (both domestically, and abroad).
I have been to Ginza Chosuya before, and got the impression those guys are not one of the snakes in the pit. As an aside, when I first encountered nihonto in Japan (in 2003) I was given a largish stack of GC's monthly newsletter/catalogues from a friend there. I very much enjoy them. I did notice that the Samurai Museum is not listed in the dealer links section (https://www.samuraimuseum.jp/shop/). Does anyone know what their reputation is?
As of now I am attempting to get a sense for what quality (blade/smith) correlates with what price point. Oh, and can someone explain the various rating systems as they appear on the swordsmith index? I've been trying to get a sense for various smith reputations and have found metrics there that contain the Hawley ranking, as well as something they call "TT." I found some information on the saku system, but I still have a very shallow understanding of it.
Okay, back to my original post: as for Chris' conjecture of over-polish, the seller's pictures of other blades have a similar quality to them, which may be an artifact of the photography. I wonder what specifically makes you suspect an over-polish (again, with the acknowledgement we are dealing with incomplete information). What does such a thing look like, in general? Same issue with the acid conjecture. I'd like to have eyes for these kinds of things. As of now I know what rust looks like. 8D
I've got four months to scout for something I'd like to see in person in Japan. That should give me some time to read/study, and to pester people around here. If I don't find something, or am not confident enough to make a purchase, then I will wait. These objects will still be around.
Thanks,
Z