The hardest part is over. Those first couple of scratches on that brand new pair of skis that you spent weeks researching are the most painful. Once they're there, your skis are no longer plastic-perfect, so go get after it in whatever terrain you want.
Usually, I don't worry about it in the early season because there are exposed rocks all over. Then when the snow base fills in, I get a good tune. This year, though, the base never filled in and there are rocks, weeds and such everywhere. My board is torn to crap, but it's a lot more fun just riding everything I like to ride than sitting in the lodge staring at a pristine base.
Sibhusky makes a good point, though, hidden rocks and such are more of a worry for your health.