It can never be too clean. I keep all of mine in the house. 6 days out of the week (most of the time) they're shelf queens, but sunday..... muahahahhahaha!
The savage and the revo have shelf bodies, and bash bodies.
We ran yesterday after rain all day the day before, what a mess. I ran a couple laps with the Revo and buggy when I first got to the track and parked it. Let the others run around an dry the track some more.