>Recently in Eau Claire Wisconsin (that's the "fly over" land for people on
the coasts), a very clean 87 westy sold at the Volkswagen dealer
>for $7,500......... that's at a VW dealer!!  In California that same westy
might go for 10 or 11K.
>

It could also have much to do with the amount of winter seasoning in the
form of salt and its effects. In one week of spring sleet and snow and thaw
a Wisconsin vehicle will see more humidity than some Californicated
examples see in any wet year.

The values of both should reflect this. No mystery here that I can see.
Doktor Tim
Maintenance Repair and Restoration of European Vehicles
San Juan Island, WA