My old gas grill is falling apart, and is only 4 years old or so.  Looking to get another one.  Requirements are something that won't flame up and will last.  It will be kept on my back porch under the roof.  Our high humidity and mild winters here in Louisiana make grills rust out pretty quick.  My wife's boss swears by Holland grills.  They are expensive but supposed to last and not flame up.  Anyone else have a favorite that will last and not flame up?