I have noticed that estimates on Oberndorf sporters at auction, at least here in the US, have been going up and up.
I guess appreciation of the original Oberndorfs is finally catching up with their quality.
Maybe the high prices on pre-64 Model 70's is pushing Mausers up too.
An example:
http://www.rockislandauction.com/viewitem/aid/58/lid/1548