I had a Weber 3100 with a titanium coloured lid. Titanium looks good until you do a few cooks and it starts to stain. You have to spend way too much time and elbow grease removing the BBQ stains.
I changed it to a black 3200 lid. It is so much easier to keep it looking good.
I was a bit surprised to find it seems to cook better.
Can anyone guess why? Is it the higher lid? Maybe black vs titanium colour cooks better?