I guess I don't quite get the advantage of having a spray on bed liner.  It is I guess to "protect" the bed.  However to me the material itself ruins the bed.  I dont' get it.  I had a spray on liner in a truck and it looked like heck, no better than the bed would have looked with the same abuse I'm sure.  If you could somehow peel it off leaving a pristine bed I'd get it but apparently that is not the case.