I bought this to replace my 20+ year old Genesis 1000. The Genesis cart and box were about toast, but the original cast grates and stainless flavorizer bars were in very good shape.  Those bars were not magnetic - meaning they were made of a quality austenitic type of stainless steel.  Enter the Chinese: The new grills flavorizer bars, and all the rest of the stainless components are highly magnetic - meaning a cheaper grade ferritic stainless steel was used - probably 409.  The warranty for the new bars is only 5 years, when the old ones easily lasted 20+.  Can you guess why?