I think UNflashed ones will actually have HIGHER resale value in private party sales if the reflash does as they say and lowers power and MPG. Trade in value will drop, but I foresee private party values staying about the same as those who want them will continue to want them. And those who are really after MPG already have been deleting them. The downside will truly be diesel as a whole. A many articles have stated, VW had finally started to break the 80's diesel stigma that had such a stranglehold here in the US, but now all these articles are refocusing people's attention onto the invisible toxins you cannot see. So now diesels are getting screwed twice. Were getting raped if we let out ANY black smoke, and now were getting the death penalty even if they can't see it just because it's a diesel. Thanks to one manufacturers attempt at skirting the rules, the WHOLE INDUSTRY is going to get a HUGE hit backwards. The rumors are already flying as to GM will go forward with the diesel CANYON/COLORADO or not, and I've seen several bashing BMW and MB even though there diesels have been proven to meet the emissions even under normal driving conditions, but it's guilt by diesel association.