I have a 15 or 20 year old Weber. I have rebuilt it several times ordering parts from Weber. Weber has some awesome people on the help/order lines.I clean mine when it .. uh ... doesn't need propane to stay lit
I've got a Weber Genesis, nothing too fancy but I'm happy that parts are available. The previous grill my brother had gifted me (don't remember the brand) and we used it a TON until I just couldn't find replacement parts for it. Say what you will about gas, but the convenience wins for me. I'm not a good cook anyway.