Love my Prius. It's a 2010 III w/nav. Purchased in Aug. of 2009. I only drive it during the summer, it has a little over 17,000 miles. I recently started breeding bullmastiff dogs and they just don't fit in the Prius. So, I'd like to purchase a Sienna. The first dealership I called offered me 16,000 for the Prius. After I picked my jaw up off the floor, he told me there's just no demand and they're over priced. Called a second dealership who offered me 14,000. The car was in an accident that was repaired by a Toyota body shop. We had to take it a one and a half hours away, but I insisted it be a Toyota repair. So, the carfax shows an accident. I'm absolutely flabbergasted by the low ball number. Kelly blue book shows trade-in value for poor condition as 16,600. This is my first Toyota. I thought they held their resell value. Consumer Reports October issue ranked the Prius number one in holding resell value. Am I wrong and the dealerships are right? The whole situation makes me very nervous about buying another Toyota. What are your thoughts?