Given the roads out here, everyone makes sure thier insurance says they get "one free windscreen a year" without it affecting thier no claim status.
You get a few good stone chips, and hey, who knows, all of a sudden you culd suddenly get a strike that puts an unrepairable crack in a sceen that means it absolutely must be replaced...some of these "straw that broke the camels back" hits even seem to happen in guys driveways...