Ron, No question that more plating you have, the longer they last.Just make sure that if you buy new bumpers with more plating ,that is what you are getting. You can tell a lot just buy looking at them. As you probley know by now , there is a lot of crap out there. Use your own judgement and spend what you can afford to make your car look good to you. Old Bugs use to have great chrome at one time .