I'm not convinced they have the engineering done right on the crumple zones. (A pillars, B pillars, C pillars, side door braces etc) I'm not convinced they have the body mounts designed right not to fatigue, crack, and rot away in 10 years. I don't believe they have a system to combat every place a steel screw is used to hold something to the aluminum sub body.
There is a reason the aircraft industry is built with billions of rivets and not screws/bolts. I'm not convinced the have the mechanical stresses worked out for expansion/contraction for the AL body parts from 140 deg summer temps to -20 below winter temps. (if I've looked up my stats correctly, AL has roughly twice the expansion/contraction ratio as steel)
Im not convinced that the body panels are thick enough to not be dented from a heavy bird ***** 50' up or even the slightest door ding. I'm not convinced that any trucks that live within sight of an ocean arnt going to fall apart in 5-10 years from galvanic corrosion. Not to mention what happens to the trucks in the rust belt of the US.
Those are the issues off the top of my head of why I wont own one. Now I might be convinced to buy a wrecked one whole and transplant that 2.7 into something else.... but Ill look to revisit my choice in 7-10 years when i see what the track record is.