I think there would be a niche for a small, RWD and possibly even 4WD truck, regardless of the price difference. Some people just don't want or need a full size truck, even if it may be the smarter thing to do financially.
Along with the Brat, the Scamp/Rampage, the Baja... they weren't big sellers, but there's a niche market for 'em. Whether it can marketed right and become a seller... well, we'll see.
Personally, I don't see a lot of guys around here detaching from their "manhood" to buy one, even though it would make sense. More trucks around here are just driven. Never worked, never off the road. Don't dare ask one of these guys to put something in the box.
Myself, I don't have a lot of use for anything with less than an 8 foot box. I like to be able to put a standard sheet of plywood or drywall in the truck and close the gate. But that's me.