I checked the Kelly blue book value on my 2015 Chevy Silverado 2500 diesel with 8’ bed. Paid $55,000 in September of 2014. Value today was $45-47,000. It has a little over 70,000 miles on it. I was surprised it held that much value after 7 1/2 years. I’m trading it in on a brand new 2021 Chevy Colorado. It is a LT with the redline package…got them to add the trail boss package, heated seats, tonneau cover, tow package and bigger off road tires…even swap. They’ll probably sell my truck for what i originally paid for it.