Why does Dodge go cheap with their steel?

don't understand why people buy something made of metal, don't coat or protect that metal yearly and still expect it not to corrode. $129 yearly to Krown Rustproofing (Ontario) 2010 Ram, no rust, money well spent?, won't know for another 20 years. stay tuned!!
I had m1994 silverado rustproofed and undercoated before i drove it off the lot. Spent one winter in N.J. very mild winter. Light dustings of snow. No road salt. Aug 1995 i beat feet to Texas and never left. Body is still rock solid. Paints burnt off the hood and roof from the brutal sun we have though.

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