Just because some of you think you dont have rust, does not mean it isnt there. The European vehicles seem to be the only ones that come from the factory made to withstand harsh environments, however I have seen my fair share of them rust out as well. This week alone I have 2 jobs sitting here that need frames welded (00 & up); I dont know why some cars rust and some dont, but thats how it works out. Last fall I did 3 99-01 Grand Cherokees that the front seat floor mounts rusted through; my fatrher in law (who takes no care at all) has a 99 grand with 200k that has no rust on it. I could tell you tons of stories of "new" vehicles rotting out, i dont have time. Bottom line is rust happens if you live in corrosive environments. PERIOD. It is up to the consumer whether they want the added piece of mind and benefit of a quality rustproofing, its their call. But please dont misinform them by telling its a useless waste of money...