That is the least amount compared to West Marine. Here is the web page that I saw all these expensive boxes.Some Clubs and Marinas are excepting these as dock boxes. But the fiberglass ones are far better.
That is what I was guessing but was not sure if marinas would allow you to make screw holes in the dock.Assuming they are similar to my current box, screwed to the deck through holes in the bottom of the box.