I've noticed every 2016 I've looked at is overpriced by about $5,000 to $10,000 according to KBB. The latest excuse has been this one is one of our 3 in the entire country. Are these prices just made up by Cadillac or are these the true values due to rarity? Those of you bought your 2016 used, did you overpay? I don't mind overpaying if these are the true values but obviously need some clarity.