These auctions can get crazy especially when you get a couple guys with more money than sense that just refuse to lose. There was a bare bones '70 Camaro [not Z28, SS, nothing] with a pretty radical protouring mod setup sold for $150K recently on BJ or Mecum. Nuts!
Picking up a GNX with 68 miles as an investment . . . certainly. $220K? Hard to picture how that is going to work out for the better?