Same here... I also use it to attach stuff, like a quick plastic bag for trash and other things, sort like an "Anchor" and the thought of a dent in the body, well, just wouldn't want the hassles/costs of getting it fixed. I don't think weight is an issue in the overall scheme of things.. I also have the bike rack and the weight of that and 1 or 2 bikes on the back will far out weigh it. I don't know of any difference unless tow vehicle is right on the margin...
HTH..