Got to visit the Mecum auction today for a few hours, amazing to see so many high quality vehicles in one place, took some pics for my TB friends, including GNX 071, a 43 mile GN and an 87 Regal with V8 & T package.
Rare does not equal valuable. I don't think it is worth $20k but at an auction all you need is two bidders with big check books and bigger egos to get the sale price up there. Fools and their money are soon partying or something like that.