I have them - doesn't really bother me. Just clean them off with wd40 or when I'm washing the bike. I always run the bike up to temperature and usually give it a good run, as it's a toy for me as opposed to every day transport.
Ah yes motorcycle live. Its a good day out but it's quite expensive, it's £20 ticket then £10 to park a car then fuel and refreshments on top of that makes for an expensive day and that's before buying kit! I'm thinking about going. I want a new lid and was looking at a new shark helmet. May get...