There was a pair at Mecum that was a no sale at 370k. When you break either down both are good money. I saw 3 18's this week at BJ and the highest was 122k, much lower then what they were doing at Mecum
The average money for a 170 at auction has been 200k. Just because 2 are VIN matched (like many more) isn't going to magically bring 200k more like some of these people think