The Province newspaper had a review of the SRT-10 truck Friday, too... left me wondering the same thing. What's the point of an overpowered pickup truck? If you want speed, buy the Viper.
Though I admit, a "pimped out" pickup truck can be cool to see, I wouldn't pay money for a Daytona or SRT-10 Dodge. I would consider modifying a Ford Ranger or something cheap on visual appeal, but for the kind of money the Daytona asks for I'd be looking at a real vehicle.
That said, my dad has a new Dodge Dakota 4x4 quad cab with a short box, and yes, I wondered the same thing: the last truck with an extended cab Dakota with a long box - great for hauling all sorts of stuff.