Being the owner is where the value is. It's the thumbs up and the little kids squealing "Look at the truck, Daddy". It's the senior citizens reminiscing about the good old days when they had one just like it, even though theirs wasn't really anything like my fully custom creation.
$4,000 is a lot of money in this economy, but it's not worth anything once it's spent. I would keep the truck unless you are strapped to pay your mortgage or something.