I can see dons point on the tool box thing, but the other one.. 90% of the truck beds i see are lined with some kind of liner which protects crap like that..
I would tend to lean toward clarks view, unless its your MoneyMakerTruk(business) not sure if its that big of a deal. If when i ever buy a truck, im having a bed liner installed or sprayed on.
just my lame .02