Depends who you work for and how tricked out you want your truck. I've seen some of the  1ff  se guys drop 100k on accessories for their trucks. Lots of companies will get their entire fleet outfitted with HUGE grill guards the size of a small Suzuki car. I know some welders that install bumpers for trucks full time.  I imagine a 5k bumper that will almost 100% last the life of the truck is worth saving 15k incase an elk goes face first through the radiator and somehow fucks up the motor.