I think a lot of people are spoiled at the moment. Used car prices are at a high. But no matter what, everyone is going to only give a rough estimate sight unseen. Also, dealers have always been wildly different at their offers depending on what they are selling to you and whether they have a buyer that is wiling to take yours off their hands immediately. Tesla is no different than any other business, they will pay you what the car is worth to THEM, not you. Always shop around to other buyers before taking any trade in offer, trade ins have typically been the lowest offer of any buyer. This is not a new phenomena.