If you run the truck hard, the paint will come off. Using a flat or textured paint will make it much easier to touch up scratches and scrapes. Spray on bedliner is a great choice. It's what I use now, but I will be changing that for either brush on or new wheels. 

That sounds like a good idea. I think I am going to do the same. Why spend the money on spray paint when I will have some extra bedliner to play with.