I’m pretty used to no back window, used to drive an ambulance I owned as a race car hauler for quite a while. 
Stripped out is what’s excellent about it. Can build out a system to hold a few bikes, slide out battery charging station, maybe some primitive camping provisions for my sales guy if he wants to. Outdoor folks are weird like that. 
Though also entertaining the idea of having one custom built, apparently I can just order one, then pick it up at the factory in Kansas City, only about 4 hours away from me. Would be pretty neat.