Whenever a new generation of a vehicle is released, the resale value of previous generations goes way down. It makes sense. Everyone wants the newest thing, so if a used car looks just like the new ones, resale values will be high. As soon as a replacement comes along, older body styles will drop in price.
The Dodge Ram gets just 15-mpg, compared to the 45-mpg of a $22,000 Toyota Prius. Even with such a large difference in mileage numbers, it would take you about 110,000 miles to make up the difference in their prices with gas savings at $2.50 per gallon.
The 2008 Dodge Ram is selling with heavy discounts.