Ok, I'm going to be that guy....
Snow is white. Rocks, stumps, trees, your buddy, Rock Chucks and Moose are not white. Stay on the white stuff and you won't tear skis up, you hit the other stuff, bad things happen.
I really don't understand people and rock damage. Unless you are in a true "no fall" situation there is very little reason to hit rocks unless you are just being careless. I ski fast and aggressively and very rarely hit a rock or even get a mark on my skis. Maybe it's because I work on damage like this, that I'm a little more careful with thin spots and rocky areas when I'm skiing. But, avoiding rock damage really isn't that hard.
It drives me crazy when skiers come in with impact and rock damage and they blame the ski area, the build of the skis, and everything else besides themselves and carelessness. Their first statement goes something like this, "I was just skiing along and the edge pulled out or the tips just blew apart." or "I don't know how it happened.", etc., etc. I just roll my eyes...
I guess that I really don't know why I'm being grumpy about it. The shop guy's mantra ought to be, "Go on and tear 'em up, I'll fix 'em, but it's gonna cost ya" and "Tear'em up boys, they make new one's every day, and I'll sell 'em to you".
Just an old shop guys rant for a Monday...