From my very limited experience:
Most Japanese items, unshrinked, go in the $50 range (more for modules, less for painting guides); modules can be up to $75-$100
Anything
SW should go in the $75-$125 range, as Blackmoor says;
The item on the top right in your pic, a copy went for $50 at the NTRPG con midnight auction, in used condition. In addition, I sold another two in the ACJ series privately for $50 apiece.
Here are prices for Japanese items from the last two NTRPG Con auctions (thanks to Curt Gould for most of these):
B8---$74 (shrinked)
M1---$65 (shrinked)
X8---$75 (shrinked)
X2---$120 (shrinked)
AC4---$80 (unshrinked)
French:
B3---$85 (shrinked)
B4---$75 (unshrinked)
Mike B.