>> I have a Members Mark (Grand Hall) propane grill. The original cast
>> iron burners only lasted about 3 years before crumbling to the point
>> they burn unevenly.
>> Will the stainless burners give the same cooking characteristics as
>> the cast iron (under creamic blocks)? Are there any negatives (except
>> the price) to stainless?
>>
>> I figure that I need one set now & if the stainless lasts 6 years,
>> I'll break even on the price difference (assuming I replace cast iron
>> every 3 years).

I'm surprised the cast iron did not last longer. but iron does rust.
Stainless should last much longer than 6 years if they are a heavy enough
material. I don't see any reason they should not urn the same way, they may
even be better.