Or instead of waiting for the latest and greatest rice truck or small dodge with a small diesel, you can pick up a 6 year old Dodge 2500 with 600 ft lbs. of torque for two thirds the price with 400,000 miles left on the engine. And get 21 mpg to boot. And 15 MPG while towing the C-dory.
Your comment on the rain and carrying stuff around in a van versus a truck is right on. I've always used a fiberglass cap or tonneau because of that. However with the truck, one suddenly realizes all of the BIG stuff that you find needs hauling around that really requires an open truck bed. For example, the motorcycle or 4 wheeler bug could hit you, or how about your aunt fannies fridge or if you have kids, moving their households around year after year, etc. etc.
A quad cab truck with the short bed has a whole lot of room in the back seat area. Most of the back seats fold up and leave a very large flat area inside for all of the stuff my wife and I carry for a month away even when we aren't towing the boat.
Lots to think about, but trucks tow, all other vehicle forms compromise too far to creature comfort...in my opinion.