If they were more in line pricewise with an F-150, could get out of their own way, got more than 12mpg and didn't crumble into a pile after two rust belt winters... I would happily dd the heck out of one.
I only mention the rust belt winter thing because it is a concern of mine since they are mainly in arid areas. I don't know how much saltwater rustproofing they took into account when they designed them.
At least in Australia they have a Toyota backed program where they stretch the frame to fit a longer bed. Really helps with the proportions of it too. It is done thru Toyota before delivery to the customer so it is still all under warranty.
Since we are spitballing in the land of make believe I would have that done to mine as well.