I can't really vote as none of the options really apply to me as i carry ladders as and when i need them...
And like you lee, that's few and far between. I suppose i only take the ladders off because A) it cuts down on weight B) There diy ladders so i'm a bit embarrsed if i'm honest
and C) The noise they make when driving at speed does my head in after a while!
Oh yeah and D) i can get in (virtually) any car park without them on cos my van is only a small vauxhall combo
Oh yeah and sorrry, E) They will definitely not get nicked if there not on the van
George