I have a 2006 in Laramie and the leather is almost as good as the day I bought it 12 years ago. Never parked indoors, or even in the shade for that matter. Love the heated seats too.
Have you considered the manual tranny. I have the taller rear end gears and rarely have to shift down from 6th even climbing mountains with a GVW of over 12,000 pounds and running 19.5's with 34" tall tires. When I do down shift to 5th, it's because the road speeds are 55mph or less on the twists and bends while climbing.
Manual makes for good speed control on downhills too.
