I guess it depends on the customer, but personally, I wouldn't pay that much. There are many members here who have the ability to make those mounts very easily for significantly less money. There are also members who probably don't know which end of a screwdriver is the handle and would happily pay $60.
With that said, I do really like the location of the lights, but I wouldn't want them permanently mounted above the bed rails. Long term for my own truck, I have plans to fab up some type of mount that will use an electronic actuator to make the light pop up above the tailgate when it's turned on and then stow away below the tailgate when it's off. A light on just one side of the truck would be fine with me. This is the actuator I'd like to use and if it wasn't $500, I'd have probably already done this.
Baja Designs Light Bar Actuator :: Kartek Off Road Parts & Accessories
Good luck.