Looking to replace a 10-year old Summit grill with Genesis E-330 which apparently only comes in black if you want natural gas. Having had NG, I would never go back to LP. So our question is what is the experiences people have had with finish durability? The Summit was SS and looks great (although I do have oxidation issues with parts of the firebox. I don't really feel like doing a rebuild that would probably cost a good fraction of a new grill. Any comments on durability (or anything else) would be appreciated.